The Cidr Report
This report has been generated at Fri Nov 13 21:11:22 2009 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
06-11-09307380 189705
07-11-09307163 189662
08-11-09307176 189813
09-11-09307199 189761
10-11-09307335 190250
11-11-09307357 190329
12-11-09307371 190597
13-11-09307775 190807
AS Summary
32857 Number of ASes in routing system
13976 Number of ASes announcing only one prefix
4335 Largest number of prefixes announced by an AS
AS4323 : TWTC - tw telecom holdings, inc.
91482048 Largest address span announced by an AS (/32s)
AS4134 : CHINANET-BACKBONE No.31,Jin-rong Street
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 13Nov09 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 308014 190768 11724638.1% All ASes
AS6389 4258 321 393792.5% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4335 1924 241155.6% TWTC - tw telecom holdings,
inc.
AS1785 1787 384 140378.5% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS4766 1886 580 130669.2% KIXS-AS-KR Korea Telecom
AS17488 1477 294 118380.1% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS22773 1118 71 104793.6% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS8151 1571 641 93059.2% Uninet S.A. de C.V.
AS10620 1030 143 88786.1% TV Cable S.A.
AS4755 1277 420 85767.1% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS19262 1044 236 80877.4% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS8452 1044 284 76072.8% TEDATA TEDATA
AS18101 983 336 64765.8% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS6478 1312 671 64148.9% ATT-INTERNET3 - ATT WorldNet
Services
AS18566 1059 444 61558.1% COVAD - Covad Communications
Co.
AS3356 1222 628 59448.6% LEVEL3 Level 3 Communications
AS4808 763 195 56874.4% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS7303 662 96 56685.5% Telecom Argentina S.A.
AS4804 635 72 56388.7% MPX-AS Microplex PTY LTD
AS7018 1588 1041 54734.4% ATT-INTERNET4 - ATT WorldNet
Services
AS22047 546 18 52896.7% VTR BANDA ANCHA S.A.
AS11492 1145 654 49142.9% CABLEONE - CABLE ONE, INC.
AS9498 651 183 46871.9% BBIL-AP BHARTI Airtel Ltd.
AS9443 531 80 45184.9% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS17676 565 129 43677.2% GIGAINFRA Softbank BB Corp.
AS855619 187 43269.8% CANET-ASN-4 - Bell Aliant
Regional Communications, Inc.
AS4780 567 149 41873.7% SEEDNET Digital United Inc.
AS5668 786 371 41552.8% AS-5668 - CenturyTel Internet
Holdings, Inc.
AS7011 1036 627 40939.5% FRONTIER-AND-CITIZENS -
Frontier Communications of
America, Inc.
AS7738 430 29 40193.3% Telecomunicacoes da Bahia S.A.
AS14117 437 44 39389.9% Telefonica del Sur S.A.
Total 36364112522511269.1% Top 30 total
Possible Bogus Routes
41.223.92.0/22 AS36936 CELTEL-GABON Celtel Gabon Internet Service
41.223.188.0/24 AS22351 INTELSAT Intelsat Global BGP Routing
BGP Update Report
BGP Update Report Interval: 22-Oct-09 -to- 29-Oct-09 (7 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS970631932 2.3%2902.9 -- PETISNET-AS BUSAN EDUCATION RESEARCH INFORMATION CENTER 2 - AS41661 20078 1.4% 542.6 -- ERTH-CHEL-AS CJSC Company ER-Telecom Chelyabinsk 3 - AS35805 19764 1.4% 41.2 -- UTG-AS United Telecom AS 4 - AS982917808 1.3% 20.9 -- BSNL-NIB National Internet Backbone 5 - AS845214506 1.0% 14.6 -- TEDATA TEDATA 6 - AS17974 14242 1.0% 17.1 -- TELKOMNET-AS2-AP PT Telekomunikasi Indonesia 7 - AS11735 13212 0.9%6606.0 -- ITRON-OAKLAND-HOSTING - ITRON 8 - AS29049 10662 0.8% 35.4 -- DELTA-TELECOM-AS Delta Telecom LTD. 9 - AS17488 10486 0.8% 7.0 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 10 - AS237009710 0.7% 9.2 -- BM-AS-ID PT. Broadband Multimedia, Tbk 11 - AS4323 9442 0.7% 2.2 -- TWTC - tw telecom holdings, inc. 12 - AS7643 8976 0.6% 6.2 -- VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) 13 - AS6389 8299 0.6% 2.0 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 14 - AS4755 7835 0.6% 6.2 -- TATACOMM-AS TATA Communications formerly VSNL is Leading ISP 15 - AS8151 7738 0.6% 5.0 -- Uninet S.A. de C.V. 16 - AS106207707 0.6% 7.4 -- TV Cable S.A. 17 - AS9198 7302 0.5% 18.4 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 18 - AS6478 6890 0.5% 5.1 -- ATT-INTERNET3 - ATT WorldNet Services 19 - AS9299 6539 0.5% 36.9 -- IPG-AS-AP Philippine Long Distance Telephone Company 20 - AS36419 0.5% 213.0 -- ELKATV ELEKTRONIKA - KATV d.o.o. TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS11735 13212 0.9%6606.0 -- ITRON-OAKLAND-HOSTING - ITRON 2 - AS970631932 2.3%2902.9 -- PETISNET-AS BUSAN EDUCATION RESEARCH INFORMATION CENTER 3 - AS362391892 0.1%1892.0 -- EXIGEN-CANADA - Exigen Canada 4 - AS276671027 0.1%1027.0 -- Universidad Autonoma de la Laguna 5 - AS41661 20078 1.4% 542.6 -- ERTH-CHEL-AS CJSC Company ER-Telecom Chelyabinsk 6 - AS3 486 0.0% 143.0 -- ELKATV ELEKTRONIKA - KATV d.o.o. 7 - AS454052099 0.1% 419.8 -- ONAIRIC-AS-KR ONAIR IC 8 - AS49562 417 0.0% 417.0 -- XMS Xtra Media Services 9 - AS48309 791 0.1% 395.5 -- AGS-AS Ariana Gostar Spadana Autonomous Number 10 - AS2642 1799 0.1% 359.8 -- LEG-CA-GOV - State of California 11 - AS8668 2193 0.2% 313.3 -- TELONE-AS TelOne Zimbabwe P/L 12 - AS48640 291 0.0% 291.0 -- MAZ-AS MAZ Mutua de Accidentes de Trabajo y Enfermedades 13 - AS39803 578 0.0% 289.0 -- UTI-AS SC UTI COMMUNICATIONS SYSTEMS SRL 14 - AS26812 536 0.0% 268.0 -- ROTARYORC - Rotary International 15 - AS4050 254 0.0% 254.0 -- OMNINET-PRI-AS - Omninet Communications Services 16 - AS42693 226 0.0% 226.0 -- KMBBANK-AS KMB Bank 17 - AS393862679 0.2% 223.2 -- STC-IGW-AS Saudi Telecom Company 18 - AS229171323 0.1% 220.5 -- INFOCHANNEL - InfoChannel Ltd. 19 - AS3586 2516 0.2% 209.7 -- JAMNET - University of the West Indies 20 - AS5691 2642 0.2% 203.2 -- MITRE-AS-5 - The MITRE Corporation TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 63.82.251.0/24 6606 0.5% AS11735 -- ITRON-OAKLAND-HOSTING - ITRON 2 - 63.80.163.0/24 6606 0.5% AS11735 -- ITRON-OAKLAND-HOSTING - ITRON 3 - 211.182.0.0/16 3992 0.3% AS9706 -- PETISNET-AS BUSAN EDUCATION RESEARCH INFORMATION CENTER 4 - 210.180.128.0/18 3992 0.3% AS9706 -- PETISNET-AS BUSAN EDUCATION RESEARCH INFORMATION CENTER 5 - 211.43.64.0/21 3992 0.3% AS9706 -- PETISNET-AS BUSAN EDUCATION RESEARCH INFORMATION CENTER 6 - 211.43.32.0/19 3990 0.3% AS9706 -- PETISNET-AS BUSAN EDUCATION RESEARCH INFORMATION CENTER 7 - 211.43.29.0/24 3990 0.3% AS9706 -- PETISNET-AS BUSAN EDUCATION RESEARCH INFORMATION CENTER 8 - 211.43.72.0/22 3990 0.3% AS9706 -- PETISNET-AS BUSAN EDUCATION RESEARCH INFORMATION CENTER 9 - 210.180.192.0/19 3990 0.3% AS9706 -- PETISNET-AS BUSAN EDUCATION RESEARCH INFORMATION CENTER 10 - 211.43.30.0/23 3990 0.3% AS9706 -- PETISNET-AS BUSAN EDUCATION RESEARCH INFORMATION CENTER 11 - 95.78.176.0/21 2652 0.2% AS41661 -- ERTH-CHEL-AS CJSC Company ER-Telecom Chelyabinsk 12 - 95.78.184.0/21 2648 0.2% AS41661 --
BGP Update Report
BGP Update Report Interval: 15-Oct-09 -to- 22-Oct-09 (7 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS6389 129479 3.7% 38.7 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 2 - AS17488 55469 1.6% 43.6 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 3 - AS919852840 1.5% 133.1 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 4 - AS647852749 1.5% 38.7 -- ATT-INTERNET3 - ATT WorldNet Services 5 - AS701845927 1.3% 37.8 -- ATT-INTERNET4 - ATT WorldNet Services 6 - AS10176 43444 1.2%3103.1 -- TENET-AS Taejon Institute of Education Science 7 - AS475539408 1.1% 36.8 -- TATACOMM-AS TATA Communications formerly VSNL is Leading ISP 8 - AS19262 39193 1.1% 40.5 -- VZGNI-TRANSIT - Verizon Internet Services Inc. 9 - AS10620 36769 1.1% 39.9 -- TV Cable S.A. 10 - AS238632287 0.9% 32.0 -- INS-AS - ATT Data Communications Services 11 - AS815132202 0.9% 27.7 -- Uninet S.A. de C.V. 12 - AS982930851 0.9% 44.1 -- BSNL-NIB National Internet Backbone 13 - AS701 27071 0.8% 40.5 -- UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 14 - AS24560 26966 0.8% 38.6 -- AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telemedia Services 15 - AS949823721 0.7% 39.0 -- BBIL-AP BHARTI Airtel Ltd. 16 - AS17908 21789 0.6% 39.5 -- TCISL Tata Communications 17 - AS970619919 0.6%1532.2 -- PETISNET-AS BUSAN EDUCATION RESEARCH INFORMATION CENTER 18 - AS14117 19452 0.6% 45.8 -- Telefonica del Sur S.A. 19 - AS41661 18440 0.5% 512.2 -- ERTH-CHEL-AS CJSC Company ER-Telecom Chelyabinsk 20 - AS17974 17365 0.5% 26.8 -- TELKOMNET-AS2-AP PT Telekomunikasi Indonesia TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS11735 11238 0.3%5619.0 -- ITRON-OAKLAND-HOSTING - ITRON 2 - AS10176 43444 1.2%3103.1 -- TENET-AS Taejon Institute of Education Science 3 - AS953115485 0.5%3097.0 -- GEDU-AS-KR Kwangju City Office Of Education 4 - AS454066154 0.2%3077.0 -- AJU-AS-KR AJU Internet Technology 5 - AS362392774 0.1%2774.0 -- EXIGEN-CANADA - Exigen Canada 6 - AS970619919 0.6%1532.2 -- PETISNET-AS BUSAN EDUCATION RESEARCH INFORMATION CENTER 7 - AS387035759 0.2%1439.8 -- KTB-AS-KR KTBnetwork Co., Ltd. 8 - AS276671209 0.0%1209.0 -- Universidad Autonoma de la Laguna 9 - AS14490 765 0.0% 765.0 -- VIRTELA-CUST-VCASJC1-EXTREME Virtela Communications 10 - AS5963 8181 0.2% 681.8 -- DNIC-ASBLK-05800-06055 - DoD Network Information Center 11 - AS22806 592 0.0% 592.0 -- TENCO-INC - TENCO, INC. 12 - AS12732 568 0.0% 568.0 -- bbTT GmbH 13 - AS41661 18440 0.5% 512.2 -- ERTH-CHEL-AS CJSC Company ER-Telecom Chelyabinsk 14 - AS2642 1732 0.1% 433.0 -- LEG-CA-GOV - State of California 15 - AS32243 393 0.0% 393.0 -- ALBL - Aluminum Blanking Company 16 - AS229171511 0.0% 377.8 -- INFOCHANNEL - InfoChannel Ltd. 17 - AS3 372 0.0% 143.0 -- BLETANET Bleta Sh.p.k 18 - AS18084 304 0.0% 304.0 -- ANC Asia Netcom Japan Corp. 19 - AS5691 2681 0.1% 297.9 -- MITRE-AS-5 - The MITRE Corporation 20 - AS45782 288 0.0% 288.0 -- PHILIPPINEAIRLINES-PH-AP Philippine Airlines Inc. TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 63.82.251.0/24 5620 0.2% AS11735 -- ITRON-OAKLAND-HOSTING - ITRON 2 - 63.80.163.0/24 5618 0.2% AS11735 -- ITRON-OAKLAND-HOSTING - ITRON 3 - 95.59.1.0/24 4715 0.1% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 4 - 88.204.221.0/244680 0.1% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 5 - 95.59.3.0/24 4529 0.1% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 6 - 95.59.8.0/23 4522 0.1% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 7 - 95.59.2.0/23 4522 0.1% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 8 - 95.59.4.0/22 4522 0.1% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 9 - 92.46.244.0/23 4488 0.1% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 10 - 89.218.220.0/234478 0.1% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 11 - 89.218.218.0/234476 0.1% AS9198 -- KAZTELECOM-AS
The Cidr Report
This report has been generated at Fri Oct 23 21:11:17 2009 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
16-10-09305625 188521
17-10-09305777 188584
18-10-09305721 188718
19-10-09305781 188812
20-10-09306184 188983
21-10-09306022 189387
22-10-09306388 189448
23-10-09306361 189635
AS Summary
32685 Number of ASes in routing system
13880 Number of ASes announcing only one prefix
4323 Largest number of prefixes announced by an AS
AS4323 : TWTC - tw telecom holdings, inc.
89686272 Largest address span announced by an AS (/32s)
AS27064: DNIC-ASBLK-27032-27159 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 23Oct09 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 306714 189740 11697438.1% All ASes
AS6389 4164 319 384592.3% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4323 1885 243856.4% TWTC - tw telecom holdings,
inc.
AS4766 1879 579 130069.2% KIXS-AS-KR Korea Telecom
AS17488 1470 294 117680.0% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS22773 1113 77 103693.1% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS1785 1775 840 93552.7% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS8151 1520 598 92260.7% Uninet S.A. de C.V.
AS4755 1266 398 86868.6% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS19262 1024 233 79177.2% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS18566 1062 297 76572.0% COVAD - Covad Communications
Co.
AS8452 990 254 73674.3% TEDATA TEDATA
AS18101 979 245 73475.0% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS6478 1347 681 66649.4% ATT-INTERNET3 - ATT WorldNet
Services
AS3356 1225 567 65853.7% LEVEL3 Level 3 Communications
AS4808 759 189 57075.1% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS10620 1020 456 56455.3% TV Cable S.A.
AS7303 657 100 55784.8% Telecom Argentina S.A.
AS17908 638 92 54685.6% TCISL Tata Communications
AS24560 780 242 53869.0% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS9498 652 125 52780.8% BBIL-AP BHARTI Airtel Ltd.
AS22047 545 18 52796.7% VTR BANDA ANCHA S.A.
AS7018 1576 1063 51332.6% ATT-INTERNET4 - ATT WorldNet
Services
AS4804 621 114 50781.6% MPX-AS Microplex PTY LTD
AS11492 1134 646 48843.0% CABLEONE - CABLE ONE, INC.
AS9443 525 80 44584.8% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS17676 562 125 43777.8% GIGAINFRA Softbank BB Corp.
AS4780 562 143 41974.6% SEEDNET Digital United Inc.
AS7011 1029 620 40939.7% FRONTIER-AND-CITIZENS -
Frontier Communications of
America, Inc.
AS855628 223 40564.5% CANET-ASN-4 - Bell Aliant
Regional Communications, Inc.
AS7738 428 29 39993.2% Telecomunicacoes da Bahia S.A.
Total 36253115322472168.2% Top 30 total
Possible Bogus Routes
41.223.92.0/22 AS36936 CELTEL-GABON Celtel Gabon Internet
BGP Update Report
BGP Update Report Interval: 08-Oct-09 -to- 15-Oct-09 (7 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS10176 61264 4.0% 181.8 -- TENET-AS Taejon Institute of Education Science 2 - AS919843178 2.8% 192.8 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 3 - AS982936112 2.4% 45.8 -- BSNL-NIB National Internet Backbone 4 - AS638933154 2.2% 10.1 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 5 - AS953128004 1.8%5600.8 -- GEDU-AS-KR Kwangju City Office Of Education 6 - AS35805 18358 1.2% 40.3 -- UTG-AS United Telecom AS 7 - AS845218228 1.2% 24.9 -- TEDATA TEDATA 8 - AS41661 15605 1.0% 380.6 -- ERTH-CHEL-AS CJSC Company ER-Telecom Chelyabinsk 9 - AS453815103 1.0% 56.8 -- ERX-CERNET-BKB China Education and Research Network Center 10 - AS647812570 0.8% 8.9 -- ATT-INTERNET3 - ATT WorldNet Services 11 - AS17488 12084 0.8% 9.4 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 12 - AS701811531 0.8% 9.5 -- ATT-INTERNET4 - ATT WorldNet Services 13 - AS424910832 0.7% 62.3 -- LILLY-AS - Eli Lilly and Company 14 - AS192629624 0.6% 10.0 -- VZGNI-TRANSIT - Verizon Internet Services Inc. 15 - AS2386 8809 0.6% 8.7 -- INS-AS - ATT Data Communications Services 16 - AS179748654 0.6% 12.7 -- TELKOMNET-AS2-AP PT Telekomunikasi Indonesia 17 - AS309698586 0.6% 536.6 -- TAN-NET TransAfrica Networks 18 - AS4755 8400 0.6% 9.9 -- TATACOMM-AS TATA Communications formerly VSNL is Leading ISP 19 - AS8151 8265 0.5% 7.1 -- Uninet S.A. de C.V. 20 - AS181017196 0.5% 10.9 -- RIL-IDC Reliance Infocom Ltd Internet Data Centre, TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS953128004 1.8%5600.8 -- GEDU-AS-KR Kwangju City Office Of Education 2 - AS454066764 0.4%3382.0 -- AJU-AS-KR AJU Internet Technology 3 - AS362392994 0.2%2994.0 -- EXIGEN-CANADA - Exigen Canada 4 - AS5691 2459 0.2%2459.0 -- MITRE-AS-5 - The MITRE Corporation 5 - AS387037147 0.5%1786.8 -- KTB-AS-KR KTBnetwork Co., Ltd. 6 - AS430081754 0.1%1754.0 -- TREND-AS TREND IMPORT-EXPORT SRL 7 - AS5050 5979 0.4%1195.8 -- PSC-EXT - Pittsburgh Supercomputing Center 8 - AS410601065 0.1%1065.0 -- PRIMBANK-AS Joint-Stock Commercial Bank Primorye 9 - AS27667 899 0.1% 899.0 -- Universidad Autonoma de la Laguna 10 - AS17070 802 0.1% 802.0 -- UBSW-CHICAGO - UBS AG 11 - AS4628 1288 0.1% 644.0 -- ASN-PACIFIC-INTERNET-IX Pacific Internet Ltd 12 - AS309698586 0.6% 536.6 -- TAN-NET TransAfrica Networks 13 - AS2642 2097 0.1% 524.2 -- LEG-CA-GOV - State of California 14 - AS49317 523 0.0% 523.0 -- KSPAB Kallmyra System Produktion AB 15 - AS41035 520 0.0% 520.0 -- CPH-AS CPH Banque's AS 16 - AS5963 3531 0.2% 392.3 -- DNIC-ASBLK-05800-06055 - DoD Network Information Center 17 - AS41661 15605 1.0% 380.6 -- ERTH-CHEL-AS CJSC Company ER-Telecom Chelyabinsk 18 - AS43880 375 0.0% 375.0 -- LITECH-AS Laboratory of Information Technologies LLC 19 - AS176583215 0.2% 357.2 -- PRIMANET-AS PrimaNet - PT. Khasanah Timur Indonesia 20 - AS43704 312 0.0% 312.0 -- PINCOM-AS PINCOM d.o.o. TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 72.23.246.0/24 5918 0.4% AS5050 -- PSC-EXT - Pittsburgh Supercomputing Center 2 - 210.217.224.0/19 5604 0.3% AS9531 -- GEDU-AS-KR Kwangju City Office Of Education 3 - 211.253.68.0/225600 0.3% AS9531 -- GEDU-AS-KR Kwangju City Office Of Education 4 - 211.253.72.0/215600 0.3% AS9531 -- GEDU-AS-KR Kwangju City Office Of Education 5 - 210.218.64.0/195600 0.3% AS9531 -- GEDU-AS-KR Kwangju City Office Of Education 6 - 210.218.0.0/18 5600 0.3% AS9531 -- GEDU-AS-KR Kwangju City Office Of Education 7 - 95.59.3.0/24 4689 0.3% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 8 - 89.218.220.0/234688 0.3% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 9 - 95.59.2.0/23 4685 0.3% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 10 - 95.59.4.0/22 4685 0.3% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 11 - 89.218.218.0/234681 0.3% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales
The Cidr Report
This report has been generated at Fri Oct 16 21:11:14 2009 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
09-10-09305384 187310
10-10-09305219 187459
11-10-09305101 187628
12-10-09305258 187510
13-10-09305206 187591
14-10-09305348 188095
15-10-09305545 188160
16-10-09305625 188519
AS Summary
32603 Number of ASes in routing system
13866 Number of ASes announcing only one prefix
4313 Largest number of prefixes announced by an AS
AS4323 : TWTC - tw telecom holdings, inc.
89682176 Largest address span announced by an AS (/32s)
AS27064: DNIC-ASBLK-27032-27159 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 16Oct09 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 305850 188556 11729438.4% All ASes
AS6389 4163 327 383692.1% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4313 1841 247257.3% TWTC - tw telecom holdings,
inc.
AS4766 1880 583 129769.0% KIXS-AS-KR Korea Telecom
AS17488 1466 285 118180.6% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS22773 1114 73 104193.4% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS1785 1770 826 94453.3% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS8151 1515 600 91560.4% Uninet S.A. de C.V.
AS4755 1266 390 87669.2% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS18566 1062 244 81877.0% COVAD - Covad Communications
Co.
AS19262 1021 231 79077.4% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS8452 989 254 73574.3% TEDATA TEDATA
AS6478 1368 669 69951.1% ATT-INTERNET3 - ATT WorldNet
Services
AS3356 1227 548 67955.3% LEVEL3 Level 3 Communications
AS18101 980 358 62263.5% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS10620 1018 421 59758.6% TV Cable S.A.
AS4804 680 90 59086.8% MPX-AS Microplex PTY LTD
AS4808 758 189 56975.1% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS7303 655 100 55584.7% Telecom Argentina S.A.
AS17908 638 92 54685.6% TCISL Tata Communications
AS24560 777 232 54570.1% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS9498 651 109 54283.3% BBIL-AP BHARTI Airtel Ltd.
AS22047 545 18 52796.7% VTR BANDA ANCHA S.A.
AS11492 1135 615 52045.8% CABLEONE - CABLE ONE, INC.
AS7018 1568 1062 50632.3% ATT-INTERNET4 - ATT WorldNet
Services
AS5668 804 318 48660.4% AS-5668 - CenturyTel Internet
Holdings, Inc.
AS9443 525 83 44284.2% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS17676 562 125 43777.8% GIGAINFRA Softbank BB Corp.
AS4780 558 139 41975.1% SEEDNET Digital United Inc.
AS7011 1025 617 40839.8% FRONTIER-AND-CITIZENS -
Frontier Communications of
America, Inc.
AS28573 769 364 40552.7% NET Servicos de Comunicao S.A.
Total 36802118032499967.9% Top 30 total
Possible Bogus Routes
24.245.128.0/17 AS11492 CABLEONE - CABLE ONE, INC.
BGP Update Report
BGP Update Report Interval: 01-Oct-09 -to- 08-Oct-09 (7 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS919849597 4.6% 163.7 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 2 - AS953128365 2.6%5673.0 -- GEDU-AS-KR Kwangju City Office Of Education 3 - AS165926099 2.4% 293.2 -- ERX-TANET-ASN1 Tiawan Academic Network (TANet) Information Center 4 - AS845214240 1.3% 21.0 -- TEDATA TEDATA 5 - AS35805 11085 1.0% 25.0 -- UTG-AS United Telecom AS 6 - AS982910937 1.0% 25.0 -- BSNL-NIB National Internet Backbone 7 - AS4249 8936 0.8% 51.4 -- LILLY-AS - Eli Lilly and Company 8 - AS8866 7227 0.7% 20.2 -- BTC-AS Bulgarian Telecommunication Company Plc. 9 - AS7011 6663 0.6% 6.6 -- FRONTIER-AND-CITIZENS - Frontier Communications of America, Inc. 10 - AS5050 6127 0.6% 875.3 -- PSC-EXT - Pittsburgh Supercomputing Center 11 - AS2697 5910 0.6% 107.5 -- ERX-ERNET-AS Education and Research Network 12 - AS141175909 0.6% 16.6 -- Telefonica del Sur S.A. 13 - AS176585787 0.5% 826.7 -- PRIMANET-AS PrimaNet - PT. Khasanah Timur Indonesia 14 - AS4809 5767 0.5% 186.0 -- CHINATELECOM-CORE-WAN-CN2 China Telecom Next Generation Carrier Network 15 - AS5800 5732 0.5% 38.7 -- DNIC-ASBLK-05800-06055 - DoD Network Information Center 16 - AS335885713 0.5% 15.2 -- BRESNAN-AS - Bresnan Communications, LLC. 17 - AS309694927 0.5% 307.9 -- TAN-NET TransAfrica Networks 18 - AS7315 4861 0.5% 72.6 -- COLOMBIA TELECOMUNICACIONES S.A. ESP 19 - AS179744801 0.5% 10.6 -- TELKOMNET-AS2-AP PT Telekomunikasi Indonesia 20 - AS255244608 0.4% 18.0 -- OTON-AS SC Oton SRL TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS953128365 2.6%5673.0 -- GEDU-AS-KR Kwangju City Office Of Education 2 - AS438803006 0.3%3006.0 -- LITECH-AS Laboratory of Information Technologies LLC 3 - AS5691 2797 0.3%2797.0 -- MITRE-AS-5 - The MITRE Corporation 4 - AS410601458 0.1%1458.0 -- PRIMBANK-AS Joint-Stock Commercial Bank Primorye 5 - AS362391277 0.1%1277.0 -- EXIGEN-CANADA - Exigen Canada 6 - AS43864 988 0.1% 988.0 -- INTEGRA-MEDIA-AS Integra-Media Ltd 7 - AS5050 6127 0.6% 875.3 -- PSC-EXT - Pittsburgh Supercomputing Center 8 - AS176585787 0.5% 826.7 -- PRIMANET-AS PrimaNet - PT. Khasanah Timur Indonesia 9 - AS4628 1373 0.1% 686.5 -- ASN-PACIFIC-INTERNET-IX Pacific Internet Ltd 10 - AS238711358 0.1% 679.0 -- AINS-AS-AP Australia Internet Solutions 11 - AS249941136 0.1% 568.0 -- GENESYS-AS GENESYS Informatica AS for announcing own prefixes 12 - AS48728 460 0.0% 460.0 -- VODAFONEQATAR Vodafone Qatar Q.S.C. 13 - AS43008 446 0.0% 446.0 -- TREND-AS TREND IMPORT-EXPORT SRL 14 - AS5814 400 0.0% 400.0 -- DNIC-ASBLK-05800-06055 - DoD Network Information Center 15 - AS39803 749 0.1% 374.5 -- UTI-AS SC UTI COMMUNICATIONS SYSTEMS SRL 16 - AS35301 747 0.1% 373.5 -- CCCMOS-AS CCCMOS GROUP AS Numbers 17 - AS6036 3801 0.3% 345.5 -- DNIC-ASBLK-05800-06055 - DoD Network Information Center 18 - AS2642 1710 0.2% 342.0 -- LEG-CA-GOV - State of California 19 - AS309694927 0.5% 307.9 -- TAN-NET TransAfrica Networks 20 - AS179642436 0.2% 304.5 -- DXTNET Beijing Dian-Xin-Tong Network Technologies Co., Ltd. TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 72.23.246.0/24 6106 0.5% AS5050 -- PSC-EXT - Pittsburgh Supercomputing Center 2 - 113.11.156.0/245751 0.5% AS17658 -- PRIMANET-AS PrimaNet - PT. Khasanah Timur Indonesia 3 - 211.253.68.0/225673 0.5% AS9531 -- GEDU-AS-KR Kwangju City Office Of Education 4 - 211.253.72.0/215673 0.5% AS9531 -- GEDU-AS-KR Kwangju City Office Of Education 5 - 210.218.64.0/195673 0.5% AS9531 -- GEDU-AS-KR Kwangju City Office Of Education 6 - 210.217.224.0/19 5673 0.5% AS9531 -- GEDU-AS-KR Kwangju City Office Of Education 7 - 210.218.0.0/18 5673 0.5% AS9531 -- GEDU-AS-KR Kwangju City Office Of Education 8 - 88.204.221.0/245334 0.5% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 9 - 89.218.218.0/235325 0.5% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 10 - 89.218.220.0/235322 0.5% AS9198 -- KAZTELECOM-AS
The Cidr Report
This report has been generated at Fri Oct 9 21:11:14 2009 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
02-10-09304773 185941
03-10-09304871 185817
04-10-09304733 186089
05-10-09304982 186215
06-10-09304949 186567
07-10-09305120 186994
08-10-09305290 187266
09-10-09305384 187248
AS Summary
32540 Number of ASes in routing system
13844 Number of ASes announcing only one prefix
4311 Largest number of prefixes announced by an AS
AS4323 : TWTC - tw telecom holdings, inc.
89611776 Largest address span announced by an AS (/32s)
AS27064: DNIC-ASBLK-27032-27159 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 09Oct09 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 305474 187286 11818838.7% All ASes
AS6389 4163 325 383892.2% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4311 1787 252458.5% TWTC - tw telecom holdings,
inc.
AS4766 1881 582 129969.1% KIXS-AS-KR Korea Telecom
AS17488 1460 288 117280.3% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS18566 1062 10 105299.1% COVAD - Covad Communications
Co.
AS22773 73 103893.4% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS1785 1762 841 92152.3% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS8151 1483 577 90661.1% Uninet S.A. de C.V.
AS4755 1261 397 86468.5% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS18101 979 183 79681.3% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS19262 1020 231 78977.4% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS6478 1405 631 77455.1% ATT-INTERNET3 - ATT WorldNet
Services
AS10620 1020 250 77075.5% TV Cable S.A.
AS8452 984 263 72173.3% TEDATA TEDATA
AS3356 1222 537 68556.1% LEVEL3 Level 3 Communications
AS4804 680 90 59086.8% MPX-AS Microplex PTY LTD
AS17908 638 59 57990.8% TCISL Tata Communications
AS4808 762 188 57475.3% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS24560 774 207 56773.3% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS7303 655 100 55584.7% Telecom Argentina S.A.
AS9498 650 112 53882.8% BBIL-AP BHARTI Airtel Ltd.
AS11492 1133 605 52846.6% CABLEONE - CABLE ONE, INC.
AS22047 545 18 52796.7% VTR BANDA ANCHA S.A.
AS7018 1543 1056 48731.6% ATT-INTERNET4 - ATT WorldNet
Services
AS17676 562 125 43777.8% GIGAINFRA Softbank BB Corp.
AS5668 801 365 43654.4% AS-5668 - CenturyTel Internet
Holdings, Inc.
AS4780 564 143 42174.6% SEEDNET Digital United Inc.
AS7011 1023 616 40739.8% FRONTIER-AND-CITIZENS -
Frontier Communications of
America, Inc.
AS855625 222 40364.5% CANET-ASN-4 - Bell Aliant
Regional Communications, Inc.
AS28573 763 362 40152.6% NET Servicos de Comunicao S.A.
Total 36842112432559969.5% Top 30 total
Possible Bogus Routes
24.245.128.0/17 AS11492 CABLEONE - CABLE ONE, INC.
BGP Update Report
BGP Update Report Interval: 24-Sep-09 -to- 01-Oct-09 (7 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS919845161 3.3% 118.2 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 2 - AS953128945 2.1%5789.0 -- GEDU-AS-KR Kwangju City Office Of Education 3 - AS629827085 2.0% 49.5 -- ASN-CXA-PH-6298-CBS - Cox Communications Inc. 4 - AS35805 19455 1.4% 44.2 -- UTG-AS United Telecom AS 5 - AS845213685 1.0% 13.8 -- TEDATA TEDATA 6 - AS165911291 0.8% 34.4 -- ERX-TANET-ASN1 Tiawan Academic Network (TANet) Information Center 7 - AS174889677 0.7% 6.4 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 8 - AS6389 8046 0.6% 1.9 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 9 - AS4323 7738 0.6% 1.8 -- TWTC - tw telecom holdings, inc. 10 - AS248637552 0.6% 8.0 -- LINKdotNET-AS 11 - AS290497334 0.5% 24.1 -- DELTA-TELECOM-AS Delta Telecom LTD. 12 - AS9829 6764 0.5% 8.3 -- BSNL-NIB National Internet Backbone 13 - AS178196609 0.5% 48.6 -- ASN-EQUINIX-AP Equinix Asia Pacific 14 - AS7552 6291 0.5% 20.4 -- VIETEL-AS-AP Vietel Corporation 15 - AS5050 6165 0.5% 362.6 -- PSC-EXT - Pittsburgh Supercomputing Center 16 - AS124796025 0.4% 13.5 -- UNI2-AS Uni2 Autonomous System 17 - AS8151 5935 0.4% 4.0 -- Uninet S.A. de C.V. 18 - AS7018 5913 0.4% 3.9 -- ATT-INTERNET4 - ATT WorldNet Services 19 - AS680 5664 0.4% 20.8 -- DFN-IP service X-WiN 20 - AS4249 5620 0.4% 30.9 -- LILLY-AS - Eli Lilly and Company TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS953128945 2.1%5789.0 -- GEDU-AS-KR Kwangju City Office Of Education 2 - AS487284236 0.3%1059.0 -- VODAFONEQATAR Vodafone Qatar Q.S.C. 3 - AS495171615 0.1% 807.5 -- TEIKHOS-AS Teikhos 4 - AS43880 787 0.1% 787.0 -- LITECH-AS Laboratory of Information Technologies LLC 5 - AS26414 535 0.0% 535.0 -- LVCINT - LVC International, LLC 6 - AS3 472 0.0% 143.0 -- MINDSPEED-AS Mindspeed Technologies Ukraine LLC 7 - AS44194 471 0.0% 471.0 -- FREIFUNK-BERLIN-AS Freifunk Berlin 8 - AS38467 390 0.0% 390.0 -- DBAMOYLAN-TRANSIT-AS-AP DBA Moylan 9 - AS8668 2572 0.2% 367.4 -- TELONE-AS TelOne Zimbabwe P/L 10 - AS5050 6165 0.5% 362.6 -- PSC-EXT - Pittsburgh Supercomputing Center 11 - AS309695332 0.4% 333.2 -- TAN-NET TransAfrica Networks 12 - AS37077 312 0.0% 312.0 -- AAUN-NG 13 - AS48106 284 0.0% 284.0 -- VLAN-AS SPD Kirichok 14 - AS16309 266 0.0% 266.0 -- EEA-AS SPD Efendeev AS 15 - AS326661058 0.1% 264.5 -- CWRU-AS-1 - Case Western Reserve University 16 - AS43864 252 0.0% 252.0 -- INTEGRA-MEDIA-AS Integra-Media Ltd 17 - AS36239 249 0.0% 249.0 -- EXIGEN-CANADA - Exigen Canada 18 - AS36979 223 0.0% 223.0 -- FBN-AS 19 - AS38510 223 0.0% 223.0 -- DEPTAN-AS-ID DEPARTEMEN PERTANIAN REPUBLIK INDONESIA 20 - AS229171278 0.1% 213.0 -- INFOCHANNEL - InfoChannel Ltd. TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 72.23.246.0/24 6115 0.4% AS5050 -- PSC-EXT - Pittsburgh Supercomputing Center 2 - 210.218.64.0/195789 0.4% AS9531 -- GEDU-AS-KR Kwangju City Office Of Education 3 - 211.253.68.0/225789 0.4% AS9531 -- GEDU-AS-KR Kwangju City Office Of Education 4 - 211.253.72.0/215789 0.4% AS9531 -- GEDU-AS-KR Kwangju City Office Of Education 5 - 210.217.224.0/19 5789 0.4% AS9531 -- GEDU-AS-KR Kwangju City Office Of Education 6 - 210.218.0.0/18 5789 0.4% AS9531 -- GEDU-AS-KR Kwangju City Office Of Education 7 - 88.204.221.0/245005 0.3% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 8 - 95.59.1.0/24 4967 0.3% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 9 - 89.218.218.0/234873 0.3% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 10 - 89.218.220.0/234869 0.3% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 11 - 95.59.2.0/23 4865 0.3% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 12 - 95.59.4.0/22 4861 0.3% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 13 - 92.46.244.0/23 4860 0.3% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales
The Cidr Report
This report has been generated at Fri Oct 2 21:11:14 2009 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
25-09-09304228 184042
26-09-09304528 184193
27-09-09304266 184691
28-09-09304424 184785
29-09-09304436 185224
30-09-09304636 185372
01-10-09304812 185629
02-10-09304773 186030
AS Summary
32456 Number of ASes in routing system
13810 Number of ASes announcing only one prefix
4305 Largest number of prefixes announced by an AS
AS4323 : TWTC - tw telecom holdings, inc.
89615104 Largest address span announced by an AS (/32s)
AS27064: DNIC-ASBLK-27032-27159 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 02Oct09 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 304879 185978 11890139.0% All ASes
AS6389 4164 325 383992.2% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4305 1681 262461.0% TWTC - tw telecom holdings,
inc.
AS4766 1881 580 130169.2% KIXS-AS-KR Korea Telecom
AS17488 1475 283 119280.8% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS18566 1062 10 105299.1% COVAD - Covad Communications
Co.
AS22773 75 103693.2% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS1785 1758 816 94253.6% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS8151 1479 570 90961.5% Uninet S.A. de C.V.
AS4755 1256 392 86468.8% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS18101 979 129 85086.8% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS19262 1034 230 80477.8% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS10620 1015 213 80279.0% TV Cable S.A.
AS6478 1413 624 78955.8% ATT-INTERNET3 - ATT WorldNet
Services
AS8452 981 269 71272.6% TEDATA TEDATA
AS3356 1228 522 70657.5% LEVEL3 Level 3 Communications
AS4804 680 90 59086.8% MPX-AS Microplex PTY LTD
AS4808 762 188 57475.3% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS24560 773 205 56873.5% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS7303 651 99 55284.8% Telecom Argentina S.A.
AS9498 649 107 54283.5% BBIL-AP BHARTI Airtel Ltd.
AS11492 1131 590 54147.8% CABLEONE - CABLE ONE, INC.
AS22047 545 18 52796.7% VTR BANDA ANCHA S.A.
AS7018 1523 1055 46830.7% ATT-INTERNET4 - ATT WorldNet
Services
AS17908 496 58 43888.3% TCISL Tata Communications
AS17676 562 125 43777.8% GIGAINFRA Softbank BB Corp.
AS5668 799 364 43554.4% AS-5668 - CenturyTel Internet
Holdings, Inc.
AS4780 563 144 41974.4% SEEDNET Digital United Inc.
AS28573 759 350 40953.9% NET Servicos de Comunicao S.A.
AS7011 1023 616 40739.8% FRONTIER-AND-CITIZENS -
Frontier Communications of
America, Inc.
AS7738 427 29 39893.2% Telecomunicacoes da Bahia S.A.
Total 36484107572572770.5% Top 30 total
Possible Bogus Routes
24.245.128.0/17 AS11492 CABLEONE - CABLE ONE, INC.
41.223.92.0/22 AS36936 CELTEL-GABON Celtel Gabon Internet Service
BGP Update Report
BGP Update Report Interval: 10-Sep-09 -to- 16-Sep-09 (6 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS919871236 7.8% 334.4 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 2 - AS8452 9617 1.1% 12.8 -- TEDATA TEDATA 3 - AS358059258 1.0% 25.1 -- UTG-AS United Telecom AS 4 - AS174887088 0.8% 6.0 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 5 - AS215657013 0.8% 30.1 -- HTCC - HTC Communications, LLC 6 - AS179746625 0.7% 9.2 -- TELKOMNET-AS2-AP PT Telekomunikasi Indonesia 7 - AS248636123 0.7% 8.9 -- LINKdotNET-AS 8 - AS7643 5901 0.6% 6.4 -- VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) 9 - AS134895887 0.6% 19.6 -- EPM Telecomunicaciones S.A. E.S.P. 10 - AS4795 5519 0.6% 21.1 -- INDOSATM2-ID INDOSATM2 ASN 11 - AS208585249 0.6% 22.7 -- EGYNET-AS 12 - AS106204871 0.5% 4.8 -- TV Cable S.A. 13 - AS5050 4800 0.5% 87.3 -- PSC-EXT - Pittsburgh Supercomputing Center 14 - AS124794588 0.5% 74.0 -- UNI2-AS Uni2 Autonomous System 15 - AS148464475 0.5% 101.7 -- CGNOGE - NBC Internet 16 - AS8151 4398 0.5% 6.2 -- Uninet S.A. de C.V. 17 - AS201154094 0.5% 6.5 -- CHARTER-NET-HKY-NC - Charter Communications 18 - AS3921 4088 0.5% 116.8 -- AGNOGE - General Electric Company 19 - AS174654034 0.4% 22.7 -- ASIANET Cable ISP in India 20 - AS175574027 0.4% 14.3 -- PKTELECOM-AS-PK Pakistan Telecommunication Company Limited TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS5691 2048 0.2%2048.0 -- MITRE-AS-5 - The MITRE Corporation 2 - AS495173379 0.4%1689.5 -- TEIKHOS-AS Teikhos 3 - AS171361683 0.2%1683.0 -- SPANGROUP-UTI - Span Manufacturing Ltd. 4 - AS476401516 0.2%1516.0 -- TRICOMPAS Tricomp Sp. z. o. o. 5 - AS15145 980 0.1% 980.0 -- GLOBALSCAPE - GlobalSCAPE, Inc. 6 - AS227391476 0.2% 738.0 -- BYU-H - Brigham Young University Hawaii 7 - AS48462 701 0.1% 701.0 -- NEOCOM Neocom LLC 8 - AS38519 662 0.1% 662.0 -- M8T-AS-ID Mobile-8 Telecom, Tbk 9 - AS193981249 0.1% 624.5 -- INDENET - Indenet.net 10 - AS48497 542 0.1% 542.0 -- GTT General Transit Telecom 11 - AS41904 533 0.1% 533.0 -- SGAICE-AS JSC Severgazautomatica ICE 12 - AS26414 391 0.0% 391.0 -- LVCINT - LVC International, LLC 13 - AS3944 375 0.0% 375.0 -- PARTAN-LAB - Partan Partan 14 - AS31630 352 0.0% 352.0 -- GENELEC-INET-AS Information Engineering Company GENELEC 15 - AS919871236 7.8% 334.4 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 16 - AS4628 938 0.1% 312.7 -- ASN-PACIFIC-INTERNET-IX Pacific Internet Ltd 17 - AS178193217 0.3% 292.5 -- ASN-EQUINIX-AP Equinix Asia Pacific 18 - AS11613 280 0.0% 280.0 -- U-SAVE - U-Save Auto Rental of America, Inc. 19 - AS48944 277 0.0% 277.0 -- ASKHALIJFARSONLINE Khalij Ettela Resan Jonoub LTD 20 - AS11323 523 0.1% 261.5 -- GETTYIMAGES - Getty Images TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 95.59.8.0/23 7840 0.8% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 2 - 95.59.2.0/23 7840 0.8% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 3 - 95.59.3.0/24 7839 0.8% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 4 - 95.59.4.0/22 7839 0.8% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 5 - 89.218.220.0/237835 0.8% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 6 - 89.218.218.0/237834 0.8% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 7 - 92.46.244.0/23 7823 0.8% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 8 - 88.204.221.0/247628 0.8% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 9 - 95.59.1.0/24 7612 0.8% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 10 - 72.23.246.0/24 4618 0.5% AS5050 -- PSC-EXT - Pittsburgh Supercomputing Center 11 - 84.1.45.0/24 3913 0.4% AS41313 -- NOVATEL-AS Novatel Bulgaria 12 - 85.60.208.0/21 2129 0.2% AS12479 -- UNI2-AS Uni2 Autonomous System 13 - 192.12.120.0/242048 0.2% AS5691 -- MITRE-AS-5 - The MITRE Corporation
The Cidr Report
This report has been generated at Fri Sep 18 21:10:00 2009 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
11-09-09302098 186291
12-09-09302212 186183
13-09-09302519 186425
14-09-09302719 186698
15-09-09303023 181742
16-09-09303122 181866
17-09-09303315 181866
18-09-09 0 181866
AS Summary
0 Number of ASes in routing system
0 Number of ASes announcing only one prefix
4313 Largest number of prefixes announced by an AS
AS4323 : TWTC - tw telecom holdings, inc.
0 Largest address span announced by an AS (/32s)
Ð: TWTC - tw telecom holdings, inc.
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 18Sep09 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 303314 181866 12144840.0% All ASes
AS6389 4170 326 384492.2% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4313 1641 267262.0% TWTC - tw telecom holdings,
inc.
AS4766 1862 568 129469.5% KIXS-AS-KR Korea Telecom
AS17488 1548 290 125881.3% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS18566 1062 10 105299.1% COVAD - Covad Communications
Co.
AS22773 1099 71 102893.5% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS8151 1480 533 94764.0% Uninet S.A. de C.V.
AS1785 1740 800 94054.0% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS18101 976 66 91093.2% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS4755 1262 439 82365.2% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS19262 1043 233 81077.7% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS6478 1407 634 77354.9% ATT-INTERNET3 - ATT WorldNet
Services
AS8452 992 240 75275.8% TEDATA TEDATA
AS3356 1229 481 74860.9% LEVEL3 Level 3 Communications
AS4804 680 68 61290.0% MPX-AS Microplex PTY LTD
AS11492 1120 513 60754.2% CABLEONE - CABLE ONE, INC.
AS4808 764 189 57575.3% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS7303 638 93 54585.4% Telecom Argentina S.A.
AS4134 1008 474 53453.0% CHINANET-BACKBONE
No.31,Jin-rong Street
AS22047 542 14 52897.4% VTR BANDA ANCHA S.A.
AS9498 639 133 50679.2% BBIL-AP BHARTI Airtel Ltd.
AS10620 1013 513 50049.4% TV Cable S.A.
AS5668 790 339 45157.1% AS-5668 - CenturyTel Internet
Holdings, Inc.
AS17908 496 56 44088.7% TCISL Tata Communications
AS17676 564 125 43977.8% GIGAINFRA Softbank BB Corp.
AS7018 1497 1061 43629.1% ATT-INTERNET4 - ATT WorldNet
Services
AS4780 568 135 43376.2% SEEDNET Digital United Inc.
AS855615 202 41367.2% CANET-ASN-4 - Bell Aliant
Regional Communications, Inc.
AS7011 1013 604 40940.4% FRONTIER-AND-CITIZENS -
Frontier Communications of
America, Inc.
AS7545 856 448 40847.7% TPG-INTERNET-AP TPG Internet
Pty Ltd
Total 36986112992568769.5% Top 30 total
Possible Bogus Routes
24.245.128.0/17 AS11492 CABLEONE - CABLE ONE, INC.
41.223.92.0/22 AS36936 CELTEL-GABON
BGP Update Report
BGP Update Report Interval: 03-Sep-09 -to- 10-Sep-09 (7 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS919898231 9.2% 474.5 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 2 - AS18101 17532 1.6% 18.2 -- RIL-IDC Reliance Infocom Ltd Internet Data Centre, 3 - AS35805 15727 1.5% 40.7 -- UTG-AS United Telecom AS 4 - AS845212112 1.1% 12.1 -- TEDATA TEDATA 5 - AS764310681 1.0% 8.4 -- VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) 6 - AS17974 10057 0.9% 23.8 -- TELKOMNET-AS2-AP PT Telekomunikasi Indonesia 7 - AS8151 9846 0.9% 10.9 -- Uninet S.A. de C.V. 8 - AS117697462 0.7% 414.6 -- MOBILENETICS-LA-GW1 - Mobilenetics Corporation 9 - AS292557215 0.7% 78.4 -- ZAJIL-AS ZAJIL Autonomous Number in Saudi Arabia 10 - AS124796460 0.6% 30.6 -- UNI2-AS Uni2 Autonomous System 11 - AS4795 6386 0.6% 24.5 -- INDOSATM2-ID INDOSATM2 ASN 12 - AS174886348 0.6% 5.5 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 13 - AS4755 6119 0.6% 5.0 -- TATACOMM-AS TATA Communications formerly VSNL is Leading ISP 14 - AS5050 6047 0.6%1209.4 -- PSC-EXT - Pittsburgh Supercomputing Center 15 - AS4249 5697 0.5% 32.9 -- LILLY-AS - Eli Lilly and Company 16 - AS131245660 0.5% 18.7 -- IBGC IBGC Autonomous system of Inter-Bg-Com Ltd. 17 - AS309695397 0.5% 337.3 -- TAN-NET TransAfrica Networks 18 - AS413135165 0.5%1033.0 -- NOVATEL-AS Novatel Bulgaria 19 - AS198064856 0.5% 539.6 -- VIRTELA-NET-VGBLON2 Virtela Communications 20 - AS9829 4816 0.5% 9.8 -- BSNL-NIB National Internet Backbone TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS171362278 0.2%2278.0 -- SPANGROUP-UTI - Span Manufacturing Ltd. 2 - AS476401435 0.1%1435.0 -- TRICOMPAS Tricomp Sp. z. o. o. 3 - AS495172540 0.2%1270.0 -- TEIKHOS-AS Teikhos 4 - AS5050 6047 0.6%1209.4 -- PSC-EXT - Pittsburgh Supercomputing Center 5 - AS193982088 0.2%1044.0 -- INDENET - Indenet.net 6 - AS413135165 0.5%1033.0 -- NOVATEL-AS Novatel Bulgaria 7 - AS227391616 0.1% 808.0 -- BYU-H - Brigham Young University Hawaii 8 - AS12333 694 0.1% 694.0 -- DFINET DFi Service SA 9 - AS178192570 0.2% 642.5 -- ASN-EQUINIX-AP Equinix Asia Pacific 10 - AS4628 1799 0.2% 599.7 -- ASN-PACIFIC-INTERNET-IX Pacific Internet Ltd 11 - AS198064856 0.5% 539.6 -- VIRTELA-NET-VGBLON2 Virtela Communications 12 - AS26414 518 0.1% 518.0 -- LVCINT - LVC International, LLC 13 - AS919898231 9.2% 474.5 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 14 - AS31630 458 0.0% 458.0 -- GENELEC-INET-AS Information Engineering Company GENELEC 15 - AS37909 915 0.1% 457.5 -- WAKHOK-NET Wakkanai Hokusei Gakuen University 16 - AS453262528 0.2% 421.3 -- BBTS-AS-AP Broad Band Telecom Services Ltd 17 - AS11613 418 0.0% 418.0 -- U-SAVE - U-Save Auto Rental of America, Inc. 18 - AS117697462 0.7% 414.6 -- MOBILENETICS-LA-GW1 - Mobilenetics Corporation 19 - AS28691 408 0.0% 408.0 -- EUROCDN-AS Legend Software - Welnet service 20 - AS44194 397 0.0% 397.0 -- FREIFUNK-BERLIN-AS Freifunk Berlin TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 88.204.221.0/24 10730 0.9% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 2 - 95.59.1.0/24 10697 0.9% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 3 - 95.59.3.0/24 10374 0.9% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 4 - 95.59.8.0/23 10373 0.9% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 5 - 95.59.2.0/23 10373 0.9% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 6 - 95.59.4.0/22 10373 0.9% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 7 - 89.218.218.0/23 10357 0.9% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 8 - 89.218.220.0/23 10357 0.9% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 9 - 92.46.244.0/2310346 0.9% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 10 - 72.23.246.0/24 6021 0.5% AS5050 -- PSC-EXT - Pittsburgh Supercomputing Center 11 - 84.1.45.0/24 5137
BGP Update Report
BGP Update Report Interval: 27-Aug-09 -to- 03-Sep-09 (7 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS9198 103193 5.5% 280.4 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 2 - AS30890 88214 4.7% 181.1 -- EVOLVA Evolva Telecom / iLink Telecom 3 - AS33783 22610 1.2% 147.8 -- EEPAD 4 - AS845214795 0.8% 14.7 -- TEDATA TEDATA 5 - AS270814017 0.8% 128.6 -- Universidad de Guanajuato 6 - AS35805 10774 0.6% 28.0 -- UTG-AS United Telecom AS 7 - AS24863 10450 0.6% 11.1 -- LINKdotNET-AS 8 - AS982910214 0.6% 10.2 -- BSNL-NIB National Internet Backbone 9 - AS237009792 0.5% 27.3 -- BM-AS-ID PT. Broadband Multimedia, Tbk 10 - AS5668 9676 0.5% 9.4 -- AS-5668 - CenturyTel Internet Holdings, Inc. 11 - AS201159123 0.5% 6.2 -- CHARTER-NET-HKY-NC - Charter Communications 12 - AS3464 8771 0.5% 23.1 -- ASC-NET - Alabama Supercomputer Network 13 - AS250198719 0.5% 134.1 -- SAUDINETSTC-AS Autonomus System Number for SaudiNet 14 - AS8151 8514 0.5% 5.7 -- Uninet S.A. de C.V. 15 - AS4618 8080 0.4% 136.9 -- INET-TH-AS Internet Thailand Company Limited 16 - AS4323 7833 0.4% 3.8 -- TWTC - tw telecom holdings, inc. 17 - AS124797679 0.4% 16.1 -- UNI2-AS Uni2 Autonomous System 18 - AS4249 7546 0.4% 41.5 -- LILLY-AS - Eli Lilly and Company 19 - AS117697518 0.4% 375.9 -- MOBILENETICS-LA-GW1 - Mobilenetics Corporation 20 - AS5800 7170 0.4% 52.0 -- DNIC-ASBLK-05800-06055 - DoD Network Information Center TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS171361765 0.1%1765.0 -- SPANGROUP-UTI - Span Manufacturing Ltd. 2 - AS44194 641 0.0% 641.0 -- FREIFUNK-BERLIN-AS Freifunk Berlin 3 - AS42969 590 0.0% 590.0 -- G4SCASH G4S Cash Services (CZ), a.s. 4 - AS26414 495 0.0% 495.0 -- LVCINT - LVC International, LLC 5 - AS49517 889 0.1% 444.5 -- TEIKHOS-AS Teikhos 6 - AS476401282 0.1% 427.3 -- TRICOMPAS Tricomp Sp. z. o. o. 7 - AS8668 2718 0.1% 388.3 -- TELONE-AS TelOne Zimbabwe P/L 8 - AS5050 6118 0.3% 382.4 -- PSC-EXT - Pittsburgh Supercomputing Center 9 - AS303411141 0.1% 380.3 -- SCTA-ASN - South Central Telephone Association 10 - AS19398 754 0.0% 377.0 -- INDENET - Indenet.net 11 - AS117697518 0.4% 375.9 -- MOBILENETICS-LA-GW1 - Mobilenetics Corporation 12 - AS309695308 0.3% 353.9 -- TAN-NET TransAfrica Networks 13 - AS29544 690 0.0% 345.0 -- MAURITEL-AS 14 - AS17301 315 0.0% 315.0 -- FASTENAL - Fastenal Company 15 - AS42182 306 0.0% 306.0 -- KFMC-ASN AS Number for King Fahd Medical City 16 - AS400602533 0.1% 281.4 -- AAAWI - AAA Wireless, Inc. 17 - AS9198 103193 5.5% 280.4 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 18 - AS47361 277 0.0% 277.0 -- SYSDESIGN-NET-AS System Design LLC 19 - AS350483181 0.2% 265.1 -- NETZONE-AS SC Power Netzone SRL 20 - AS432401050 0.1% 262.5 -- GLINNET GLINNET's AS Number TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 89.218.218.0/23 11017 0.6% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 2 - 89.218.220.0/23 11016 0.6% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 3 - 92.46.244.0/2311014 0.6% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 4 - 95.59.2.0/23 11002 0.6% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 5 - 95.59.8.0/23 11000 0.6% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 6 - 95.59.4.0/22 11000 0.6% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 7 - 95.59.3.0/24 10997 0.6% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 8 - 88.204.221.0/24 10723 0.6% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 9 - 95.59.1.0/24 10687 0.6% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 10 - 72.23.246.0/24 6032 0.3% AS5050 -- PSC-EXT - Pittsburgh Supercomputing Center 11 - 207.157.105.64/2 5239 0.3% AS3464 -- ASC-NET - Alabama Supercomputer Network 12 - 84.1.45.0/24 5187 0.3% AS41313 -- NOVATEL-AS Novatel Bulgaria 13 - 203.129.254.0/24 3948 0.2% AS7633 --
The Cidr Report
This report has been generated at Fri Sep 4 21:11:40 2009 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
28-08-09301511 186429
29-08-09301248 186322
30-08-09301138 186464
31-08-09301665 186538
01-09-09301637 186574
02-09-09301706 184566
03-09-09301747 184730
04-09-09301651 184941
AS Summary
32261 Number of ASes in routing system
13742 Number of ASes announcing only one prefix
4311 Largest number of prefixes announced by an AS
AS4323 : TWTC - tw telecom holdings, inc.
89478400 Largest address span announced by an AS (/32s)
AS27064: DNIC-ASBLK-27032-27159 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 04Sep09 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 301649 184909 11674038.7% All ASes
AS6389 4178 327 385192.2% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4311 1761 255059.2% TWTC - tw telecom holdings,
inc.
AS4766 1836 544 129270.4% KIXS-AS-KR Korea Telecom
AS17488 1553 291 126281.3% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS4755 1232 144 108888.3% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS18566 1062 10 105299.1% COVAD - Covad Communications
Co.
AS22773 1095 70 102593.6% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS8151 1477 563 91461.9% Uninet S.A. de C.V.
AS10620 1009 134 87586.7% TV Cable S.A.
AS18101 952 85 86791.1% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS19262 1043 236 80777.4% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS6478 1396 644 75253.9% ATT-INTERNET3 - ATT WorldNet
Services
AS8452 989 287 70271.0% TEDATA TEDATA
AS3356 1220 592 62851.5% LEVEL3 Level 3 Communications
AS1785 1736 1115 62135.8% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS4804 686 68 61890.1% MPX-AS Microplex PTY LTD
AS4808 767 213 55472.2% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS11492 1120 566 55449.5% CABLEONE - CABLE ONE, INC.
AS7303 635 94 54185.2% Telecom Argentina S.A.
AS9498 634 103 53183.8% BBIL-AP BHARTI Airtel Ltd.
AS22047 542 16 52697.0% VTR BANDA ANCHA S.A.
AS4134 1001 534 46746.7% CHINANET-BACKBONE
No.31,Jin-rong Street
AS17676 564 127 43777.5% GIGAINFRA Softbank BB Corp.
AS7018 1497 1061 43629.1% ATT-INTERNET4 - ATT WorldNet
Services
AS7011 1015 590 42541.9% FRONTIER-AND-CITIZENS -
Frontier Communications of
America, Inc.
AS4780 566 146 42074.2% SEEDNET Digital United Inc.
AS5668 787 367 42053.4% AS-5668 - CenturyTel Internet
Holdings, Inc.
AS7545 841 429 41249.0% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS4668 695 285 41059.0% LGNET-AS-KR LG CNS
AS7738 419 29 39093.1% Telecomunicacoes da Bahia S.A.
Total 36858114312542769.0% Top 30 total
Possible Bogus Routes
24.245.128.0/17 AS11492 CABLEONE - CABLE ONE, INC.
41.223.92.0/22 AS36936 CELTEL-GABON Celtel Gabon Internet Service
41.223.176.0/22
BGP Update Report
BGP Update Report Interval: 20-Aug-09 -to- 27-Aug-09 (7 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS919889505 4.2% 260.9 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 2 - AS496178920 3.7%1337.6 -- DISC-AS-KR Daewoo Information System 3 - AS976750782 2.4%1372.5 -- DONGBUIT-AS-KR Dongbulife Insurance co.,LTD 4 - AS23716 46768 2.2%1670.3 -- CHANGWON23716-AS-KR Changwon College 5 - AS30890 36929 1.7% 76.1 -- EVOLVA Evolva Telecom / iLink Telecom 6 - AS18157 33964 1.6%1358.6 -- CHUNGJU-AS-KR chungju university 7 - AS995631164 1.5%1355.0 -- KONGJU-AS kongju national university 8 - AS945930310 1.4%1317.8 -- ASKONKUK Konkuk University 9 - AS968629346 1.4%1333.9 -- SKKUNET-AS SungKyunKwan University (SKKU) 10 - AS10159 22554 1.1%1326.7 -- HAUNET-AS-KR HANKUK Aviation University 11 - AS33783 21632 1.0% 153.4 -- EEPAD 12 - AS953021240 1.0%1327.5 -- SHINSEGAE-AS SHINSEGAE IC Co., Ltd. 13 - AS962818322 0.9% 964.3 -- SSEM-AS-KR Seoul Education Science Research Institute 14 - AS17865 16830 0.8%1683.0 -- SCOURT-AS-KR Supreme Court of Korea 15 - AS986816200 0.8%1350.0 -- CUTH-AS Catholic University of DAEGU 16 - AS10088 14846 0.7%1349.6 -- KWANGWOON-UNIV-AS-AP KWANGWOON University in Seoul, Korea 17 - AS952314644 0.7%1627.1 -- MOKWON-AS-KR Mokwon University 18 - AS23561 14526 0.7%1614.0 -- YONGINUNIVERSITY-AS-KR Yongin University 19 - AS18026 13874 0.7%1387.4 -- CHEJU-AS-KR Cheju University 20 - AS35805 13857 0.7% 36.4 -- UTG-AS United Telecom AS TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS400602466 0.1%2466.0 -- AAAWI - AAA Wireless, Inc. 2 - AS5050 5998 0.3%1999.3 -- PSC-EXT - Pittsburgh Supercomputing Center 3 - AS17865 16830 0.8%1683.0 -- SCOURT-AS-KR Supreme Court of Korea 4 - AS183031672 0.1%1672.0 -- SMARTRO-AS-KR SMARTRO 5 - AS23716 46768 2.2%1670.3 -- CHANGWON23716-AS-KR Changwon College 6 - AS100536660 0.3%1665.0 -- AYTCNET-AS Anyang Technical College 7 - AS9570 3326 0.2%1663.0 -- DAEDONG-AS-KR Daedong College 8 - AS384279936 0.5%1656.0 -- STXIDC-AS-KR FORCETEC Co., LTD. 9 - AS183154942 0.2%1647.3 -- SORABOLNET-AS-KR Sorabol College 10 - AS386831642 0.1%1642.0 -- NEC-AS-KR National Electoin Commission 11 - AS9490 1634 0.1%1634.0 -- NIS-AS National Intelligence Service 12 - AS4790 3264 0.1%1632.0 -- CHOSUN-AS-KR DIGITAL CHOSUN 13 - AS952314644 0.7%1627.1 -- MOKWON-AS-KR Mokwon University 14 - AS23561 14526 0.7%1614.0 -- YONGINUNIVERSITY-AS-KR Yongin University 15 - AS9846 1610 0.1%1610.0 -- FIRSTDATA-AS-KR FDIK 16 - AS4665 1602 0.1%1602.0 -- YONSEI-AS-KR Yonsei University 17 - AS176001446 0.1%1446.0 -- ENVICO-AS-KR Korea Environment Resources Corporation 18 - AS9969 1412 0.1%1412.0 -- WMS-NET-AS-KR KOREA RESOURCES RECOVERY AND REUTILIZATION CORPORATION 19 - AS9974 6970 0.3%1394.0 -- KRA-AS-KR Korea Racing Association 20 - AS9949 9734 0.5%1390.6 -- HOSEO-AS HOSEO UNIVERSITY TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 89.218.220.0/239641 0.4% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 2 - 89.218.218.0/239639 0.4% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 3 - 95.59.2.0/23 9636 0.4% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 4 - 92.46.244.0/23 9634 0.4% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 5 - 95.59.3.0/24 9634 0.4% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 6 - 95.59.8.0/23 9632 0.4% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 7 - 95.59.4.0/22 9632 0.4% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 8 - 88.204.221.0/249593 0.4% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 9 - 95.59.1.0/24 9583 0.4% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 10 - 72.23.246.0/24 5995 0.3% AS5050 -- PSC-EXT - Pittsburgh Supercomputing Center 11 - 84.1.45.0/24 4109 0.2% AS41313 -- NOVATEL-AS Novatel Bulgaria 12 - 193.201.184.0/21 3547 0.2% AS25546 -- BROOKLANDCOMP-AS
The Cidr Report
This report has been generated at Fri Aug 28 21:11:40 2009 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
21-08-09300840 186654
22-08-09301185 186680
23-08-09301048 186693
24-08-09301100 186967
25-08-09301246 186390
26-08-09301409 186208
27-08-09301316 186515
28-08-09301511 186446
AS Summary
32179 Number of ASes in routing system
13702 Number of ASes announcing only one prefix
4309 Largest number of prefixes announced by an AS
AS4323 : TWTC - tw telecom holdings, inc.
89615104 Largest address span announced by an AS (/32s)
AS27064: DNIC-ASBLK-27032-27159 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 28Aug09 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 301277 186415 11486238.1% All ASes
AS6389 4179 327 385292.2% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4309 1738 257159.7% TWTC - tw telecom holdings,
inc.
AS4766 1825 542 128370.3% KIXS-AS-KR Korea Telecom
AS17488 1548 303 124580.4% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS18566 1062 10 105299.1% COVAD - Covad Communications
Co.
AS22773 1091 71 102093.5% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS8151 1474 558 91662.1% Uninet S.A. de C.V.
AS18101 949 97 85289.8% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS19262 1041 234 80777.5% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS4755 1228 438 79064.3% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS6478 1385 650 73553.1% ATT-INTERNET3 - ATT WorldNet
Services
AS8452 1002 287 71571.4% TEDATA TEDATA
AS3356 1217 573 64452.9% LEVEL3 Level 3 Communications
AS1785 1734 1120 61435.4% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS4804 686 90 59686.9% MPX-AS Microplex PTY LTD
AS11492 1112 548 56450.7% CABLEONE - CABLE ONE, INC.
AS4808 762 211 55172.3% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS9498 635 91 54485.7% BBIL-AP BHARTI Airtel Ltd.
AS10620 990 453 53754.2% TV Cable S.A.
AS7303 632 98 53484.5% Telecom Argentina S.A.
AS22047 542 16 52697.0% VTR BANDA ANCHA S.A.
AS4134 999 532 46746.7% CHINANET-BACKBONE
No.31,Jin-rong Street
AS7018 1490 1052 43829.4% ATT-INTERNET4 - ATT WorldNet
Services
AS17676 564 127 43777.5% GIGAINFRA Softbank BB Corp.
AS5668 787 353 43455.1% AS-5668 - CenturyTel Internet
Holdings, Inc.
AS7011 1011 584 42742.2% FRONTIER-AND-CITIZENS -
Frontier Communications of
America, Inc.
AS7545 839 413 42650.8% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS9443 515 94 42181.7% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS4780 564 146 41874.1% SEEDNET Digital United Inc.
AS4668 695 285 41059.0% LGNET-AS-KR LG CNS
Total 36867120412482667.3% Top 30 total
Possible Bogus Routes
24.225.128.0/17 AS36377 PATRIOT-MEDIA-NJ - Comcast
Telecommunications, Inc.
BGP Update Report
BGP Update Report Interval: 13-Aug-09 -to- 20-Aug-09 (7 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS4961 516762 6.6%6379.8 -- DISC-AS-KR Daewoo Information System 2 - AS9767 323141 4.1%8733.5 -- DONGBUIT-AS-KR Dongbulife Insurance co.,LTD 3 - AS18157 219917 2.8%8796.7 -- CHUNGJU-AS-KR chungju university 4 - AS9459 204123 2.6%8874.9 -- ASKONKUK Konkuk University 5 - AS9956 201087 2.6%8742.9 -- KONGJU-AS kongju national university 6 - AS9686 194396 2.5%8836.2 -- SKKUNET-AS SungKyunKwan University (SKKU) 7 - AS23716 154216 2.0%5507.7 -- CHANGWON23716-AS-KR Changwon College 8 - AS10159 149403 1.9%5976.1 -- HAUNET-AS-KR HANKUK Aviation University 9 - AS9530 135249 1.7%7118.4 -- SHINSEGAE-AS SHINSEGAE IC Co., Ltd. 10 - AS9628 122729 1.6%6459.4 -- SSEM-AS-KR Seoul Education Science Research Institute 11 - AS986899583 1.3%7113.1 -- CUTH-AS Catholic University of DAEGU 12 - AS10088 96758 1.2%8063.2 -- KWANGWOON-UNIV-AS-AP KWANGWOON University in Seoul, Korea 13 - AS18027 88348 1.1%8834.8 -- NSU-AS-KR namseoul university 14 - AS18023 87965 1.1%3518.6 -- KMU-AS-KR Korea Maritime University 15 - AS18026 87648 1.1%8764.8 -- CHEJU-AS-KR Cheju University 16 - AS17865 87569 1.1%7960.8 -- SCOURT-AS-KR Supreme Court of Korea 17 - AS10045 80256 1.0%8917.3 -- TNUTNET-AS HANBAT NATIONAL UNIVERSITY 18 - AS997079372 1.0%8819.1 -- KUT-AS Korea University of Technology and Education 19 - AS10176 79196 1.0%8799.6 -- TENET-AS Taejon Institute of Education Science 20 - AS755779010 1.0%8778.9 -- KTNET-AS Korea Trade Network TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS9456 8920 0.1%8920.0 -- POSCO-AS POSCO 2 - AS10045 80256 1.0%8917.3 -- TNUTNET-AS HANBAT NATIONAL UNIVERSITY 3 - AS9846 8908 0.1%8908.0 -- FIRSTDATA-AS-KR FDIK 4 - AS178408890 0.1%8890.0 -- KOREACERT-AS-KR KECA, Inc. 5 - AS957117776 0.2%.0 -- INICIS-AS INICIS Co., Ltd 6 - AS176008883 0.1%8883.0 -- ENVICO-AS-KR Korea Environment Resources Corporation 7 - AS10042 17764 0.2%8882.0 -- DPC-AS-KR DAEGU POLYTECHNIC COLLEGE 8 - AS9459 204123 2.6%8874.9 -- ASKONKUK Konkuk University 9 - AS10055 35488 0.5%8872.0 -- KORAIL-AS-KR Korean National Railroad Administration 10 - AS10058 26615 0.3%8871.7 -- CU-AS-KR NACUFOK 11 - AS23983 26613 0.3%8871.0 -- DJU-AS-KR Daejeon University 12 - AS235578848 0.1%8848.0 -- YUHWA-AS-KR Yuhwa Securities Co., LTD 13 - AS23573 26532 0.3%8844.0 -- OCIC-AS-KR OCI Information Communication 14 - AS18324 53042 0.7%8840.3 -- MASANC-AS-KR Masan College 15 - AS23562 17674 0.2%8837.0 -- BCRC-AS-KR Busan Cycle Racing Corporation 16 - AS9686 194396 2.5%8836.2 -- SKKUNET-AS SungKyunKwan University (SKKU) 17 - AS18027 88348 1.1%8834.8 -- NSU-AS-KR namseoul university 18 - AS17601 17664 0.2%8832.0 -- KCGF-AS-KR KOREA CREDIT GUARANTEE FUND 19 - AS18319 61824 0.8%8832.0 -- YJNET-AS-KR Yeungnam College of Science Technology 20 - AS9452 8829 0.1%8829.0 -- KUNET-AS Korea University TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 210.90.28.0/24 8941 0.1% AS23568 -- CRA-AS-KR Cycle Racing Association 2 - 163.239.192.0/20 8925 0.1% AS3813 -- SOGANG-AS-KR sogang university 3 - 163.239.208.0/21 8923 0.1% AS3813 -- SOGANG-AS-KR sogang university 4 - 163.239.128.0/18 8923 0.1% AS3813 -- SOGANG-AS-KR sogang university 5 - 163.239.0.0/17 8923 0.1% AS3813 -- SOGANG-AS-KR sogang university 6 - 210.110.248.0/22 8922 0.1% AS10045 -- TNUTNET-AS HANBAT NATIONAL UNIVERSITY 7 - 210.98.40.0/22 8920 0.1% AS10045 -- TNUTNET-AS HANBAT NATIONAL UNIVERSITY 8 - 203.246.186.0/24 8920 0.1% AS9456 -- POSCO-AS POSCO 9 - 210.119.112.0/24 8920 0.1% AS10045 -- TNUTNET-AS HANBAT NATIONAL UNIVERSITY 10 - 203.230.104.0/22 8920 0.1% AS10045 -- TNUTNET-AS HANBAT NATIONAL UNIVERSITY 11 - 203.230.96.0/218918 0.1% AS10045 -- TNUTNET-AS HANBAT NATIONAL UNIVERSITY 12 - 202.30.46.0/23 8916 0.1% AS10045 -- TNUTNET-AS HANBAT NATIONAL UNIVERSITY 13 - 220.66.143.0/248916 0.1% AS10045 -- TNUTNET-AS HANBAT NATIONAL UNIVERSITY 14 - 220.66.144.0/228912 0.1% AS10045 -- TNUTNET-AS HANBAT NATIONAL UNIVERSITY 15 - 220.66.148.0/238912 0.1% AS10045 --
The Cidr Report
This report has been generated at Fri Aug 21 21:11:35 2009 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
14-08-09299670 185428
15-08-09300270 185630
16-08-09300435 185798
17-08-09300545 186310
18-08-09300921 186382
19-08-09300907 186378
20-08-09301052 186537
21-08-09300840 186721
AS Summary
32108 Number of ASes in routing system
13642 Number of ASes announcing only one prefix
4303 Largest number of prefixes announced by an AS
AS4323 : TWTC - tw telecom holdings, inc.
89681920 Largest address span announced by an AS (/32s)
AS27064: DNIC-ASBLK-27032-27159 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 21Aug09 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 300851 186486 11436538.0% All ASes
AS6389 4181 325 385692.2% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4303 1731 257259.8% TWTC - tw telecom holdings,
inc.
AS4766 1830 540 129070.5% KIXS-AS-KR Korea Telecom
AS17488 1555 303 125280.5% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS22773 1086 71 101593.5% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS18101 958 37 92196.1% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS8151 1482 569 91361.6% Uninet S.A. de C.V.
AS19262 1039 236 80377.3% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS4755 1227 432 79564.8% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS18566 1062 277 78573.9% COVAD - Covad Communications
Co.
AS6478 1383 629 75454.5% ATT-INTERNET3 - ATT WorldNet
Services
AS8452 1002 287 71571.4% TEDATA TEDATA
AS10620 983 348 63564.6% TV Cable S.A.
AS1785 1729 1118 61135.3% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS4804 686 91 59586.7% MPX-AS Microplex PTY LTD
AS9498 635 64 57189.9% BBIL-AP BHARTI Airtel Ltd.
AS4808 762 211 55172.3% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS7303 627 98 52984.4% Telecom Argentina S.A.
AS22047 541 14 52797.4% VTR BANDA ANCHA S.A.
AS855618 131 48778.8% CANET-ASN-4 - Bell Aliant
Regional Communications, Inc.
AS11492 1110 629 48143.3% CABLEONE - CABLE ONE, INC.
AS4134 998 534 46446.5% CHINANET-BACKBONE
No.31,Jin-rong Street
AS3356 1211 754 45737.7% LEVEL3 Level 3 Communications
AS7018 1492 1053 43929.4% ATT-INTERNET4 - ATT WorldNet
Services
AS17676 564 127 43777.5% GIGAINFRA Softbank BB Corp.
AS4780 571 142 42975.1% SEEDNET Digital United Inc.
AS7545 839 413 42650.8% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS9443 515 94 42181.7% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS7011 993 573 42042.3% FRONTIER-AND-CITIZENS -
Frontier Communications of
America, Inc.
AS5668 777 363 41453.3% AS-5668 - CenturyTel Internet
Holdings, Inc.
Total 36759121942456566.8% Top 30 total
Possible Bogus Routes
24.225.128.0/17
BGP Update Report
BGP Update Report Interval: 06-Aug-09 -to- 13-Aug-09 (7 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS4961 129280 4.6%2191.2 -- DISC-AS-KR Daewoo Information System 2 - AS919884498 3.0% 244.2 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 3 - AS976779188 2.8%2140.2 -- DONGBUIT-AS-KR Dongbulife Insurance co.,LTD 4 - AS23716 60670 2.2%2166.8 -- CHANGWON23716-AS-KR Changwon College 5 - AS18157 53746 1.9%2149.8 -- CHUNGJU-AS-KR chungju university 6 - AS995650700 1.8%2204.3 -- KONGJU-AS kongju national university 7 - AS945950451 1.8%2193.5 -- ASKONKUK Konkuk University 8 - AS968647780 1.7%2171.8 -- SKKUNET-AS SungKyunKwan University (SKKU) 9 - AS10159 36626 1.3%2154.5 -- HAUNET-AS-KR HANKUK Aviation University 10 - AS11 34449 1.2%2649.9 -- HARVARD - Harvard University 11 - AS953033061 1.2%1944.8 -- SHINSEGAE-AS SHINSEGAE IC Co., Ltd. 12 - AS962830914 1.1%1627.1 -- SSEM-AS-KR Seoul Education Science Research Institute 13 - AS33783 26953 1.0% 191.2 -- EEPAD 14 - AS986826490 0.9%2207.5 -- CUTH-AS Catholic University of DAEGU 15 - AS10088 23806 0.8%2164.2 -- KWANGWOON-UNIV-AS-AP KWANGWOON University in Seoul, Korea 16 - AS18023 21948 0.8%2194.8 -- KMU-AS-KR Korea Maritime University 17 - AS18027 21940 0.8%2194.0 -- NSU-AS-KR namseoul university 18 - AS18026 21516 0.8%2151.6 -- CHEJU-AS-KR Cheju University 19 - AS17865 21220 0.8%2122.0 -- SCOURT-AS-KR Supreme Court of Korea 20 - AS10045 20074 0.7%2230.4 -- TNUTNET-AS HANBAT NATIONAL UNIVERSITY TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS235256124 0.2%3062.0 -- CNC-CNB - Canandaigua National Corporation 2 - AS11 34449 1.2%2649.9 -- HARVARD - Harvard University 3 - AS111914726 0.2%2363.0 -- ELITE-NET - Elite.Net 4 - AS9852 9056 0.3%2264.0 -- SAMIL-AS SAMIL ACCOUNTING CORPORATION 5 - AS178402244 0.1%2244.0 -- KOREACERT-AS-KR KECA, Inc. 6 - AS3784 8976 0.3%2244.0 -- ERX-POSTECHNET Pohang University of Science and Technology 7 - AS100586720 0.2%2240.0 -- CU-AS-KR NACUFOK 8 - AS9969 2232 0.1%2232.0 -- WMS-NET-AS-KR KOREA RESOURCES RECOVERY AND REUTILIZATION CORPORATION 9 - AS10045 20074 0.7%2230.4 -- TNUTNET-AS HANBAT NATIONAL UNIVERSITY 10 - AS9322 4460 0.2%2230.0 -- EWHANET1-AS Institute of Information and Computing, EWHA WOMANS UNIV. 11 - AS176002226 0.1%2226.0 -- ENVICO-AS-KR Korea Environment Resources Corporation 12 - AS183032220 0.1%2220.0 -- SMARTRO-AS-KR SMARTRO 13 - AS176034438 0.2%2219.0 -- KUMOH-AS-KR Kumoh National University Technology 14 - AS18343 15506 0.6%2215.1 -- TAEGUTECH-AS-KR Daegu Technical College 15 - AS183204429 0.2%2214.5 -- GNUE-AS-KR Gwangju National University of Education 16 - AS183156642 0.2%2214.0 -- SORABOLNET-AS-KR Sorabol College 17 - AS100424424 0.2%2212.0 -- DPC-AS-KR DAEGU POLYTECHNIC COLLEGE 18 - AS986826490 0.9%2207.5 -- CUTH-AS Catholic University of DAEGU 19 - AS175676622 0.2%2207.3 -- IREX-AS-KR Airport Railroad Co ltd 20 - AS181638824 0.3%2206.0 -- JINJU18163-AS-KR jinju national university TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 88.204.221.0/249289 0.3% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 2 - 95.59.1.0/24 9229 0.3% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 3 - 95.59.8.0/23 9108 0.3% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 4 - 95.59.4.0/22 9108 0.3% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 5 - 95.59.3.0/24 9106 0.3% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 6 - 95.59.2.0/23 9104 0.3% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 7 - 92.46.244.0/23 9077 0.3% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 8 - 89.218.218.0/239077 0.3% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 9 - 89.218.220.0/239077 0.3% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 10 - 66.152.126.0/246090 0.2% AS23525 -- CNC-CNB - Canandaigua National Corporation 11 - 72.23.246.0/24 5963 0.2%
The Cidr Report
This report has been generated at Fri Aug 14 21:11:44 2009 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
07-08-09300092 183961
08-08-09300177 184040
09-08-09300115 184584
10-08-09300358 185154
11-08-09300492 185446
12-08-09300591 185710
13-08-09300384 185157
14-08-09299670 185421
AS Summary
32073 Number of ASes in routing system
13648 Number of ASes announcing only one prefix
4311 Largest number of prefixes announced by an AS
AS4323 : TWTC - tw telecom holdings, inc.
89683968 Largest address span announced by an AS (/32s)
AS27064: DNIC-ASBLK-27032-27159 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 14Aug09 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 300270 185401 11486938.3% All ASes
AS6389 4203 333 387092.1% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4311 1701 261060.5% TWTC - tw telecom holdings,
inc.
AS4766 1829 541 128870.4% KIXS-AS-KR Korea Telecom
AS17488 1550 306 124480.3% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS4755 1229 169 106086.2% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS22773 1086 71 101593.5% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS8151 1489 568 92161.9% Uninet S.A. de C.V.
AS18101 964 44 92095.4% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS19262 1024 235 78977.1% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS18566 1062 277 78573.9% COVAD - Covad Communications
Co.
AS6478 1363 611 75255.2% ATT-INTERNET3 - ATT WorldNet
Services
AS8452 1027 298 72971.0% TEDATA TEDATA
AS1785 1727 1124 60334.9% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS4804 686 91 59586.7% MPX-AS Microplex PTY LTD
AS9498 634 60 57490.5% BBIL-AP BHARTI Airtel Ltd.
AS4808 761 200 56173.7% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS24560 736 191 54574.0% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS7303 626 95 53184.8% Telecom Argentina S.A.
AS22047 541 14 52797.4% VTR BANDA ANCHA S.A.
AS10620 990 475 51552.0% TV Cable S.A.
AS11492 1132 637 49543.7% CABLEONE - CABLE ONE, INC.
AS855617 126 49179.6% CANET-ASN-4 - Bell Aliant
Regional Communications, Inc.
AS4134 995 532 46346.5% CHINANET-BACKBONE
No.31,Jin-rong Street
AS3356 1205 748 45737.9% LEVEL3 Level 3 Communications
AS7018 1492 1051 44129.6% ATT-INTERNET4 - ATT WorldNet
Services
AS5668 779 340 43956.4% AS-5668 - CenturyTel Internet
Holdings, Inc.
AS17676 564 127 43777.5% GIGAINFRA Softbank BB Corp.
AS4780 565 138 42775.6% SEEDNET Digital United Inc.
AS9443 515 94 42181.7% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS7011 988 568 42042.5% FRONTIER-AND-CITIZENS -
Frontier Communications of
America, Inc.
Total 366901176524925
BGP Update Report
BGP Update Report Interval: 30-Jul-09 -to- 06-Aug-09 (7 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS919895250 6.4% 251.3 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 2 - AS11 38501 2.6%2566.7 -- HARVARD - Harvard University 3 - AS815136215 2.4% 7.4 -- Uninet S.A. de C.V. 4 - AS33783 25605 1.7% 168.5 -- EEPAD 5 - AS47408 13428 0.9% 610.4 -- MANDARIN-AS Mandarin WIMAX Sicilia SpA 6 - AS887710655 0.7% 43.0 -- BOLBG-AS PowerNet Ltd, Sofia, Bulgaria 7 - AS845210481 0.7% 10.2 -- TEDATA TEDATA 8 - AS982910365 0.7% 12.8 -- BSNL-NIB National Internet Backbone 9 - AS358059586 0.6% 22.7 -- UTG-AS United Telecom AS 10 - AS6389 9116 0.6% 2.2 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 11 - AS4249 8879 0.6% 48.8 -- LILLY-AS - Eli Lilly and Company 12 - AS7018 8028 0.5% 5.2 -- ATT-INTERNET4 - ATT WorldNet Services 13 - AS179747547 0.5% 10.7 -- TELKOMNET-AS2-AP PT Telekomunikasi Indonesia 14 - AS7738 7380 0.5% 18.0 -- Telecomunicacoes da Bahia S.A. 15 - AS248637156 0.5% 7.9 -- LINKdotNET-AS 16 - AS124796863 0.5% 14.5 -- UNI2-AS Uni2 Autonomous System 17 - AS4323 6839 0.5% 1.6 -- TWTC - tw telecom holdings, inc. 18 - AS201156331 0.4% 4.3 -- CHARTER-NET-HKY-NC - Charter Communications 19 - AS6478 6217 0.4% 4.6 -- ATT-INTERNET3 - ATT WorldNet Services 20 - AS106206102 0.4% 6.1 -- TV Cable S.A. TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS11 38501 2.6%2566.7 -- HARVARD - Harvard University 2 - AS48297 766 0.1% 766.0 -- DOORHAN Vse dlya vorot Ltd 3 - AS457031908 0.1% 636.0 -- BKPM-AS-ID Badan Koordinasi Penanaman Modal (BKPM) 4 - AS4796 615 0.0% 615.0 -- BANDUNG-NET-AS-AP Institute of Technology Bandung 5 - AS47408 13428 0.9% 610.4 -- MANDARIN-AS Mandarin WIMAX Sicilia SpA 6 - AS21684 536 0.0% 536.0 -- CYBERINETBGP - Cyberonics, Inc. 7 - AS255464774 0.3% 477.4 -- BROOKLANDCOMP-AS Brookland Computer Services 8 - AS45024 462 0.0% 462.0 -- INTERBALT-AS INTERBALT Ltd. 9 - AS1564 1215 0.1% 405.0 -- DNIC-ASBLK-01550-01601 - DoD Network Information Center 10 - AS8668 2741 0.2% 391.6 -- TELONE-AS TelOne Zimbabwe P/L 11 - AS476401174 0.1% 391.3 -- TRICOMPAS Tricomp Sp. z. o. o. 12 - AS5050 5866 0.4% 366.6 -- PSC-EXT - Pittsburgh Supercomputing Center 13 - AS24994 675 0.1% 337.5 -- GENESYS-AS GENESYS Informatica AS for announcing own prefixes 14 - AS439122141 0.1% 305.9 -- NEWCOM-AS ZAO NEWCOM 15 - AS368961421 0.1% 284.2 -- MVCOMM 16 - AS400602274 0.1% 252.7 -- AAAWI - AAA Wireless, Inc. 17 - AS919895250 6.4% 251.3 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 18 - AS354001425 0.1% 237.5 -- MFIST Interregoinal Organization Network Technologies 19 - AS41492 205 0.0% 205.0 -- EXIMBANK-AS SC Eximbank SA 20 - AS5691 2660 0.2% 204.6 -- MITRE-AS-5 - The MITRE Corporation TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 88.204.221.0/24 10286 0.7% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 2 - 95.59.1.0/24 10251 0.7% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 3 - 95.59.8.0/23 10173 0.6% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 4 - 95.59.4.0/22 10173 0.6% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 5 - 95.59.3.0/24 10169 0.6% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 6 - 95.59.2.0/23 10169 0.6% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 7 - 89.218.220.0/23 10152 0.6% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 8 - 89.218.218.0/23 10152 0.6% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 9 - 92.46.244.0/2310149 0.6% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 10 - 72.23.246.0/24 5820 0.4% AS5050 -- PSC-EXT - Pittsburgh Supercomputing Center 11 - 193.201.184.0/21 4765 0.3% AS25546 -- BROOKLANDCOMP-AS Brookland Computer Services 12 - 19.0.0.0/8 4366 0.3% AS11-- HARVARD - Harvard University 13 - 130.175.0.0/16 4365 0.3% AS11-- HARVARD
The Cidr Report
This report has been generated at Fri Aug 7 21:11:28 2009 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
31-07-09299904 183798
01-08-0929 183923
02-08-0925 184260
03-08-09300160 184468
04-08-09300138 182809
05-08-09299330 183479
06-08-09299916 183808
07-08-09300092 183909
AS Summary
32000 Number of ASes in routing system
13604 Number of ASes announcing only one prefix
4307 Largest number of prefixes announced by an AS
AS4323 : TWTC - tw telecom holdings, inc.
89680896 Largest address span announced by an AS (/32s)
AS27064: DNIC-ASBLK-27032-27159 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 07Aug09 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 300158 183909 11624938.7% All ASes
AS6389 4209 336 387392.0% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4307 1674 263361.1% TWTC - tw telecom holdings,
inc.
AS4766 1825 540 128570.4% KIXS-AS-KR Korea Telecom
AS17488 1551 289 126281.4% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS4755 1231 191 104084.5% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS22773 1082 70 101293.5% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS8151 1513 583 93061.5% Uninet S.A. de C.V.
AS18566 1062 277 78573.9% COVAD - Covad Communications
Co.
AS19262 1022 237 78576.8% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS6478 1329 587 74255.8% ATT-INTERNET3 - ATT WorldNet
Services
AS8452 1025 289 73671.8% TEDATA TEDATA
AS18101 748 42 70694.4% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS10620 973 314 65967.7% TV Cable S.A.
AS1785 1725 1095 63036.5% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS4804 686 91 59586.7% MPX-AS Microplex PTY LTD
AS4808 754 194 56074.3% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS9498 638 99 53984.5% BBIL-AP BHARTI Airtel Ltd.
AS22047 541 14 52797.4% VTR BANDA ANCHA S.A.
AS7303 617 94 52384.8% Telecom Argentina S.A.
AS855615 123 49280.0% CANET-ASN-4 - Bell Aliant
Regional Communications, Inc.
AS11492 1134 657 47742.1% CABLEONE - CABLE ONE, INC.
AS24560 731 255 47665.1% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS9443 533 84 44984.2% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS7018 1498 1052 44629.8% ATT-INTERNET4 - ATT WorldNet
Services
AS5668 778 341 43756.2% AS-5668 - CenturyTel Internet
Holdings, Inc.
AS17676 564 129 43577.1% GIGAINFRA Softbank BB Corp.
AS4134 983 553 43043.7% CHINANET-BACKBONE
No.31,Jin-rong Street
AS3356 1207 782 42535.2% LEVEL3 Level 3 Communications
AS4780 562 137 42575.6% SEEDNET Digital United Inc.
AS7011 986 568 41842.4% FRONTIER-AND-CITIZENS -
Frontier Communications of
America, Inc.
Total 364291169724732
BGP Update Report
BGP Update Report Interval: 23-Jul-09 -to- 30-Jul-09 (7 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS919896435 8.3% 291.3 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 2 - AS845224062 2.1% 31.4 -- TEDATA TEDATA 3 - AS22783 18285 1.6%3047.5 -- WEBPOWER - WebPower, Inc. 4 - AS47408 14767 1.3% 703.2 -- MANDARIN-AS Mandarin WIMAX Sicilia SpA 5 - AS165912463 1.1% 132.6 -- ERX-TANET-ASN1 Tiawan Academic Network (TANet) Information Center 6 - AS35805 10796 0.9% 32.8 -- UTG-AS United Telecom AS 7 - AS214919693 0.8% 807.8 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa 8 - AS154917947 0.7% 111.9 -- WANEX-AS Wanex ltd. 9 - AS7011 7718 0.7% 35.1 -- FRONTIER-AND-CITIZENS - Frontier Communications of America, Inc. 10 - AS145717714 0.7% 68.9 -- Internet Group do Brasil 11 - AS440836712 0.6% 30.8 -- STROIBAT-AS SC Stroibat Prod SRL 12 - AS8151 6657 0.6% 6.1 -- Uninet S.A. de C.V. 13 - AS5668 6631 0.6% 8.1 -- AS-5668 - CenturyTel Internet Holdings, Inc. 14 - AS174886586 0.6% 5.3 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 15 - AS337836570 0.6% 41.1 -- EEPAD 16 - AS8485 6530 0.6%1088.3 -- SAMSC-AS SamSC RAS 17 - AS11 6453 0.6% 430.2 -- HARVARD - Harvard University 18 - AS7738 5922 0.5% 15.8 -- Telecomunicacoes da Bahia S.A. 19 - AS5050 5918 0.5%1183.6 -- PSC-EXT - Pittsburgh Supercomputing Center 20 - AS124795845 0.5% 27.2 -- UNI2-AS Uni2 Autonomous System TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS22783 18285 1.6%3047.5 -- WEBPOWER - WebPower, Inc. 2 - AS476401401 0.1%1401.0 -- TRICOMPAS Tricomp Sp. z. o. o. 3 - AS385483938 0.3%1312.7 -- INFRATEL-AS-ID-AP Network Access Point 4 - AS5050 5918 0.5%1183.6 -- PSC-EXT - Pittsburgh Supercomputing Center 5 - AS255463443 0.3%1147.7 -- BROOKLANDCOMP-AS Brookland Computer Services 6 - AS400602274 0.2%1137.0 -- AAAWI - AAA Wireless, Inc. 7 - AS8485 6530 0.6%1088.3 -- SAMSC-AS SamSC RAS 8 - AS468474210 0.4% 842.0 -- ENGINEYARD-1 - Engine Yard, Inc. 9 - AS214919693 0.8% 807.8 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa 10 - AS6671 798 0.1% 798.0 -- SAMARA-IP NETWORK FOR RESEARCH, 11 - AS354001476 0.1% 738.0 -- MFIST Interregoinal Organization Network Technologies 12 - AS4628 1445 0.1% 722.5 -- ASN-PACIFIC-INTERNET-IX Pacific Internet Ltd 13 - AS47408 14767 1.3% 703.2 -- MANDARIN-AS Mandarin WIMAX Sicilia SpA 14 - AS18829 657 0.1% 657.0 -- GALAXY-CONTROL-SYSTEMS - Galaxy Control Systems 15 - AS7270 468 0.0% 468.0 -- NET2PHONE - Net2Phone Corp. 16 - AS11032 460 0.0% 460.0 -- UQ - Universite du Quebec a Quebec 17 - AS11 6453 0.6% 430.2 -- HARVARD - Harvard University 18 - AS35103 364 0.0% 364.0 -- ILLUSTRA-AS AS Illustra 19 - AS29850 361 0.0% 361.0 -- MHN-AS - Memorial Healthcare 20 - AS43026 359 0.0% 359.0 -- IMPOL-AS Impol Sp. z o.o. TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 92.46.244.0/2310507 0.8% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 2 - 89.218.218.0/23 10486 0.8% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 3 - 89.218.220.0/23 10484 0.8% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 4 - 95.59.8.0/23 10473 0.8% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 5 - 95.59.4.0/22 10472 0.8% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 6 - 95.59.3.0/24 10471 0.8% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 7 - 95.59.2.0/23 10469 0.8% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 8 - 88.204.221.0/24 10336 0.8% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 9 - 95.59.1.0/24 10304 0.8% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 10 - 41.233.94.0/23 8496 0.7% AS8452 -- TEDATA TEDATA 11 - 41.233.92.0/23 8387 0.7% AS8452 -- TEDATA TEDATA 12 - 63.163.66.0/24 6803 0.5% AS22783 -- WEBPOWER - WebPower, Inc. 13 - 205.246.203.0/24 6801 0.5% AS22783 -- WEBPOWER - WebPower, Inc. 14 -
BGP Update Report
BGP Update Report Interval: 16-Jul-09 -to- 23-Jul-09 (7 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS919895713 6.0% 265.9 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 2 - AS17488 25218 1.6% 16.3 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 3 - AS845225189 1.6% 23.4 -- TEDATA TEDATA 4 - AS165920553 1.3% 61.2 -- ERX-TANET-ASN1 Tiawan Academic Network (TANet) Information Center 5 - AS475519486 1.2% 15.6 -- TATACOMM-AS TATA Communications formerly VSNL is Leading ISP 6 - AS47408 14496 0.9% 690.3 -- MANDARIN-AS Mandarin WIMAX Sicilia SpA 7 - AS17908 12224 0.8% 17.2 -- TCISL Tata Communications 8 - AS21491 12090 0.8% 403.0 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa 9 - AS982911492 0.7% 14.4 -- BSNL-NIB National Internet Backbone 10 - AS33783 11449 0.7% 74.3 -- EEPAD 11 - AS29049 10615 0.7% 34.4 -- DELTA-TELECOM-AS Delta Telecom LTD. 12 - AS8151 9684 0.6% 6.5 -- Uninet S.A. de C.V. 13 - AS6389 9683 0.6% 2.3 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 14 - AS106208875 0.6% 9.2 -- TV Cable S.A. 15 - AS7738 8834 0.6% 21.5 -- Telecomunicacoes da Bahia S.A. 16 - AS308908786 0.6% 18.2 -- EVOLVA Evolva Telecom / iLink Telecom 17 - AS385488555 0.5% 503.2 -- INFRATEL-AS-ID-AP Network Access Point 18 - AS4249 7932 0.5% 43.6 -- LILLY-AS - Eli Lilly and Company 19 - AS358057838 0.5% 18.8 -- UTG-AS United Telecom AS 20 - AS201157250 0.5% 5.1 -- CHARTER-NET-HKY-NC - Charter Communications TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS47408 14496 0.9% 690.3 -- MANDARIN-AS Mandarin WIMAX Sicilia SpA 2 - AS385488555 0.5% 503.2 -- INFRATEL-AS-ID-AP Network Access Point 3 - AS28618 476 0.0% 476.0 -- Linktel Telecomunicacoes do Brasil Ltda 4 - AS255464408 0.3% 440.8 -- BROOKLANDCOMP-AS Brookland Computer Services 5 - AS4796 432 0.0% 432.0 -- BANDUNG-NET-AS-AP Institute of Technology Bandung 6 - AS476401281 0.1% 427.0 -- TRICOMPAS Tricomp Sp. z. o. o. 7 - AS309695968 0.4% 426.3 -- TAN-NET TransAfrica Networks 8 - AS21491 12090 0.8% 403.0 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa 9 - AS5050 6030 0.4% 376.9 -- PSC-EXT - Pittsburgh Supercomputing Center 10 - AS354001846 0.1% 307.7 -- MFIST Interregoinal Organization Network Technologies 11 - AS919895713 6.0% 265.9 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 12 - AS42426 264 0.0% 264.0 -- EURIAL-AS SC EURIAL INVEST SA 13 - AS5055 788 0.1% 262.7 -- WANET - Software Design Associates 14 - AS8668 1824 0.1% 260.6 -- TELONE-AS TelOne Zimbabwe P/L 15 - AS24994 510 0.0% 255.0 -- GENESYS-AS GENESYS Informatica AS for announcing own prefixes 16 - AS400602262 0.1% 251.3 -- AAAWI - AAA Wireless, Inc. 17 - AS34972 249 0.0% 249.0 -- ROBINAXIS-AS SC BINAXIS SRL 18 - AS41492 247 0.0% 247.0 -- EXIMBANK-AS SC Eximbank SA 19 - AS5313 245 0.0% 245.0 -- DNIC-ASBLK-05120-05376 - DoD Network Information Center 20 - AS41904 968 0.1% 242.0 -- SGAICE-AS JSC Severgazautomatica ICE TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 92.46.244.0/2310397 0.6% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 2 - 89.218.220.0/23 10379 0.6% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 3 - 95.59.8.0/23 10377 0.6% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 4 - 95.59.2.0/23 10377 0.6% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 5 - 95.59.4.0/22 10377 0.6% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 6 - 95.59.3.0/24 10376 0.6% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 7 - 89.218.218.0/23 10375 0.6% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 8 - 88.204.221.0/249758 0.6% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 9 - 95.59.1.0/24 9741 0.6% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 10 - 41.233.92.0/23 8996 0.5% AS8452 -- TEDATA TEDATA 11 - 41.233.94.0/23 8814 0.5% AS8452 -- TEDATA TEDATA 12 -
The Cidr Report
This report has been generated at Fri Jul 24 21:11:13 2009 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
17-07-09297646 181238
18-07-09297821 181428
19-07-09298028 181360
20-07-09297961 181282
21-07-09298280 181670
22-07-09298046 182478
23-07-09298944 182557
24-07-09298785 182918
AS Summary
31943 Number of ASes in routing system
13570 Number of ASes announcing only one prefix
4300 Largest number of prefixes announced by an AS
AS4323 : TWTC - tw telecom holdings, inc.
89732608 Largest address span announced by an AS (/32s)
AS27064: DNIC-ASBLK-27032-27159 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 24Jul09 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 299234 182851 11638338.9% All ASes
AS6389 4238 336 390292.1% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4300 1651 264961.6% TWTC - tw telecom holdings,
inc.
AS4766 1809 525 128471.0% KIXS-AS-KR Korea Telecom
AS17488 1544 319 122579.3% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS4755 1221 194 102784.1% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS22773 1077 70 100793.5% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS1785 1713 751 96256.2% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS8151 1490 563 92762.2% Uninet S.A. de C.V.
AS19262 1022 236 78676.9% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS8452 1025 304 72170.3% TEDATA TEDATA
AS18101 750 43 70794.3% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS3356 1191 509 68257.3% LEVEL3 Level 3 Communications
AS18566 1062 399 66362.4% COVAD - Covad Communications
Co.
AS6478 1242 596 64652.0% ATT-INTERNET3 - ATT WorldNet
Services
AS10620 938 307 63167.3% TV Cable S.A.
AS4804 686 70 61689.8% MPX-AS Microplex PTY LTD
AS17908 706 130 57681.6% TCISL Tata Communications
AS24560 731 184 54774.8% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS9498 633 103 53083.7% BBIL-AP BHARTI Airtel Ltd.
AS22047 543 14 52997.4% VTR BANDA ANCHA S.A.
AS11492 1128 611 51745.8% CABLEONE - CABLE ONE, INC.
AS4134 972 459 51352.8% CHINANET-BACKBONE
No.31,Jin-rong Street
AS7303 597 92 50584.6% Telecom Argentina S.A.
AS855614 121 49380.3% CANET-ASN-4 - Bell Aliant
Regional Communications, Inc.
AS17676 564 78 48686.2% GIGAINFRA Softbank BB Corp.
AS4808 671 187 48472.1% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS7018 1513 1048 46530.7% ATT-INTERNET4 - ATT WorldNet
Services
AS9443 531 83 44884.4% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS4780 557 134 42375.9% SEEDNET Digital United Inc.
AS7011 988 570 41842.3% FRONTIER-AND-CITIZENS -
Frontier Communications of
America, Inc.
Total 36056106872536970.4% Top 30 total
Possible Bogus Routes
BGP Update Report
BGP Update Report Interval: 09-Jul-09 -to- 16-Jul-09 (7 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS9198 102617 7.2% 337.6 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 2 - AS815168199 4.8% 13.0 -- Uninet S.A. de C.V. 3 - AS845224845 1.7% 24.0 -- TEDATA TEDATA 4 - AS29049 24261 1.7% 76.5 -- DELTA-TELECOM-AS Delta Telecom LTD. 5 - AS47408 14408 1.0% 847.5 -- MANDARIN-AS Mandarin WIMAX Sicilia SpA 6 - AS33783 11963 0.8% 77.7 -- EEPAD 7 - AS35805 10742 0.8% 30.2 -- UTG-AS United Telecom AS 8 - AS128818199 0.6% 911.0 -- BIA Net 9 - AS4249 8183 0.6% 45.0 -- LILLY-AS - Eli Lilly and Company 10 - AS1659 7772 0.6% 32.2 -- ERX-TANET-ASN1 Tiawan Academic Network (TANet) Information Center 11 - AS237006947 0.5% 24.2 -- BM-AS-ID PT. Broadband Multimedia, Tbk 12 - AS4795 6823 0.5% 25.7 -- INDOSATM2-ID INDOSATM2 ASN 13 - AS214916739 0.5% 224.6 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa 14 - AS309696446 0.5% 537.2 -- TAN-NET TransAfrica Networks 15 - AS5050 6112 0.4% 555.6 -- PSC-EXT - Pittsburgh Supercomputing Center 16 - AS158085975 0.4% 94.8 -- Communication Solutions Ltd is an ISP serving 17 - AS201155850 0.4% 4.1 -- CHARTER-NET-HKY-NC - Charter Communications 18 - AS6389 5763 0.4% 1.3 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 19 - AS179745714 0.4% 7.7 -- TELKOMNET-AS2-AP PT Telekomunikasi Indonesia 20 - AS148465507 0.4% 125.2 -- CGNOGE - NBC Internet TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS166113104 0.2%3104.0 -- 2 - AS22256 0.2% 4.0 -- SIM-SG-AS-AP SIM Headquarters 3 - AS476401213 0.1%1213.0 -- TRICOMPAS Tricomp Sp. z. o. o. 4 - AS8599 1088 0.1%1088.0 -- Ulyanovsk State University Network 5 - AS128818199 0.6% 911.0 -- BIA Net 6 - AS47408 14408 1.0% 847.5 -- MANDARIN-AS Mandarin WIMAX Sicilia SpA 7 - AS370111526 0.1% 763.0 -- MSTARTEL-AS 8 - AS276532374 0.2% 593.5 -- Alpha Communications Network 9 - AS5050 6112 0.4% 555.6 -- PSC-EXT - Pittsburgh Supercomputing Center 10 - AS309696446 0.5% 537.2 -- TAN-NET TransAfrica Networks 11 - AS255465115 0.4% 511.5 -- BROOKLANDCOMP-AS Brookland Computer Services 12 - AS47350 510 0.0% 510.0 -- GCX-SYSTEMS-AS GCX Systems Ltd. 13 - AS5313 472 0.0% 472.0 -- DNIC-ASBLK-05120-05376 - DoD Network Information Center 14 - AS42214 380 0.0% 380.0 -- IWC-AS SC International Work Company SRL 15 - AS354002107 0.1% 351.2 -- MFIST Interregoinal Organization Network Technologies 16 - AS11032 340 0.0% 340.0 -- UQ - Universite du Quebec a Quebec 17 - AS9198 102617 7.2% 337.6 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 18 - AS4796 331 0.0% 331.0 -- BANDUNG-NET-AS-AP Institute of Technology Bandung 19 - AS36975 311 0.0% 311.0 -- CBA-AS 20 - AS33074 305 0.0% 305.0 -- ISC-NBO1 ISC, Nairobi, Kenya TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 92.46.244.0/2311306 0.7% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 2 - 89.218.218.0/23 11286 0.7% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 3 - 89.218.220.0/23 11286 0.7% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 4 - 95.59.2.0/23 11269 0.7% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 5 - 95.59.4.0/22 11269 0.7% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 6 - 95.59.3.0/24 11268 0.7% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 7 - 95.59.8.0/23 11268 0.7% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 8 - 95.59.1.0/24 10281 0.7% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 9 - 88.204.221.0/24 10265 0.7% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 10 - 41.233.92.0/23 9060 0.6% AS8452 -- TEDATA TEDATA 11 - 41.233.94.0/23 9006 0.6% AS8452 -- TEDATA TEDATA 12 - 72.23.246.0/24 6050 0.4% AS5050 -- PSC-EXT - Pittsburgh Supercomputing Center 13 - 193.201.184.0/21 5099 0.3% AS25546 -- BROOKLANDCOMP-AS Brookland Computer Services 14 - 216.9.95.0/24
The Cidr Report
This report has been generated at Fri Jul 17 21:11:56 2009 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
10-07-09296253 178978
11-07-09299820 178603
12-07-09296274 178932
13-07-09296416 179206
14-07-09296519 179712
15-07-09296861 180542
16-07-09297739 180732
17-07-09297646 181272
AS Summary
31869 Number of ASes in routing system
13538 Number of ASes announcing only one prefix
4295 Largest number of prefixes announced by an AS
AS4323 : TWTC - tw telecom holdings, inc.
89732096 Largest address span announced by an AS (/32s)
AS27064: DNIC-ASBLK-27032-27159 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 17Jul09 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 297884 181271 11661339.1% All ASes
AS6389 4243 336 390792.1% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4295 1643 265261.7% TWTC - tw telecom holdings,
inc.
AS4766 1806 524 128271.0% KIXS-AS-KR Korea Telecom
AS17488 1543 310 123379.9% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS4755 1219 193 102684.2% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS22773 1077 70 100793.5% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS1785 1711 710 100158.5% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS8151 1474 595 87959.6% Uninet S.A. de C.V.
AS18566 1062 244 81877.0% COVAD - Covad Communications
Co.
AS19262 1019 237 78276.7% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS8452 1027 293 73471.5% TEDATA TEDATA
AS18101 749 41 70894.5% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS3356 1197 503 69458.0% LEVEL3 Level 3 Communications
AS6478 1217 581 63652.3% ATT-INTERNET3 - ATT WorldNet
Services
AS17908 692 68 62490.2% TCISL Tata Communications
AS4804 684 135 54980.3% MPX-AS Microplex PTY LTD
AS4134 990 445 54555.1% CHINANET-BACKBONE
No.31,Jin-rong Street
AS9498 630 88 54286.0% BBIL-AP BHARTI Airtel Ltd.
AS11492 1127 585 54248.1% CABLEONE - CABLE ONE, INC.
AS855616 76 54087.7% CANET-ASN-4 - Bell Aliant
Regional Communications, Inc.
AS22047 543 14 52997.4% VTR BANDA ANCHA S.A.
AS7303 597 95 50284.1% Telecom Argentina S.A.
AS10620 949 459 49051.6% TV Cable S.A.
AS17676 564 78 48686.2% GIGAINFRA Softbank BB Corp.
AS4808 665 181 48472.8% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS24560 729 246 48366.3% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS7018 1505 1046 45930.5% ATT-INTERNET4 - ATT WorldNet
Services
AS9443 531 83 44884.4% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS7011 988 570 41842.3% FRONTIER-AND-CITIZENS -
Frontier Communications of
America, Inc.
AS4668 693 284 40959.0% LGNET-AS-KR LG CNS
Total 36142107332540970.3% Top 30 total
Possible Bogus Routes
24.245.128.0/17
BGP Update Report
BGP Update Report Interval: 02-Jul-09 -to- 09-Jul-09 (7 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS919896848 3.9% 320.7 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 2 - AS638931411 1.3% 7.3 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 3 - AS845215773 0.6% 15.7 -- TEDATA TEDATA 4 - AS432315133 0.6% 3.5 -- TWTC - tw telecom holdings, inc. 5 - AS815113730 0.6% 9.3 -- Uninet S.A. de C.V. 6 - AS475512115 0.5% 9.9 -- TATACOMM-AS TATA Communications formerly VSNL is Leading ISP 7 - AS701811916 0.5% 7.9 -- ATT-INTERNET4 - ATT WorldNet Services 8 - AS178511646 0.5% 6.8 -- AS-PAETEC-NET - PaeTec Communications, Inc. 9 - AS23700 11643 0.5% 28.2 -- BM-AS-ID PT. Broadband Multimedia, Tbk 10 - AS20115 11197 0.5% 7.9 -- CHARTER-NET-HKY-NC - Charter Communications 11 - AS21491 10627 0.4% 354.2 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa 12 - AS17488 10563 0.4% 6.9 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 13 - AS47408 10524 0.4% 389.8 -- MANDARIN-AS Mandarin WIMAX Sicilia SpA 14 - AS337839292 0.4% 59.9 -- EEPAD 15 - AS2386 9270 0.4% 7.3 -- INS-AS - ATT Data Communications Services 16 - AS290499007 0.4% 28.4 -- DELTA-TELECOM-AS Delta Telecom LTD. 17 - AS4766 8885 0.4% 4.9 -- KIXS-AS-KR Korea Telecom 18 - AS6478 8624 0.3% 7.1 -- ATT-INTERNET3 - ATT WorldNet Services 19 - AS192628501 0.3% 8.3 -- VZGNI-TRANSIT - Verizon Internet Services Inc. 20 - AS174478466 0.3% 79.9 -- NET4INDIA Net4India Ltd. TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS166113957 0.2%3957.0 -- 2 - AS21232 0.1% 4.0 -- KAL-HK Two International Finance Centre 3 - AS309697642 0.3% 636.8 -- TAN-NET TransAfrica Networks 4 - AS370111898 0.1% 632.7 -- MSTARTEL-AS 5 - AS8599 562 0.0% 562.0 -- Ulyanovsk State University Network 6 - AS276532223 0.1% 555.8 -- Alpha Communications Network 7 - AS255464608 0.2% 460.8 -- BROOKLANDCOMP-AS Brookland Computer Services 8 - AS227832468 0.1% 411.3 -- WEBPOWER - WebPower, Inc. 9 - AS47408 10524 0.4% 389.8 -- MANDARIN-AS Mandarin WIMAX Sicilia SpA 10 - AS476401127 0.1% 375.7 -- TRICOMPAS Tricomp Sp. z. o. o. 11 - AS354002189 0.1% 364.8 -- MFIST Interregoinal Organization Network Technologies 12 - AS21491 10627 0.4% 354.2 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa 13 - AS5050 5855 0.2% 344.4 -- PSC-EXT - Pittsburgh Supercomputing Center 14 - AS4796 327 0.0% 327.0 -- BANDUNG-NET-AS-AP Institute of Technology Bandung 15 - AS919896848 3.9% 320.7 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 16 - AS47350 320 0.0% 320.0 -- GCX-SYSTEMS-AS GCX Systems Ltd. 17 - AS36975 320 0.0% 320.0 -- CBA-AS 18 - AS33074 319 0.0% 319.0 -- ISC-NBO1 ISC, Nairobi, Kenya 19 - AS419041015 0.0% 253.8 -- SGAICE-AS JSC Severgazautomatica ICE 20 - AS42214 226 0.0% 226.0 -- IWC-AS SC International Work Company SRL TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 92.46.244.0/2310617 0.4% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 2 - 95.59.4.0/22 10583 0.4% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 3 - 95.59.3.0/24 10582 0.4% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 4 - 95.59.2.0/23 10582 0.4% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 5 - 95.59.8.0/23 10580 0.4% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 6 - 89.218.220.0/23 10578 0.4% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 7 - 89.218.218.0/23 10578 0.4% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 8 - 88.204.221.0/249950 0.4% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 9 - 95.59.1.0/24 9939 0.4% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 10 - 72.23.246.0/24 5730 0.2% AS5050 -- PSC-EXT - Pittsburgh Supercomputing Center 11 - 193.201.184.0/21 4567 0.2% AS25546 -- BROOKLANDCOMP-AS Brookland Computer Services 12 - 216.9.95.0/24 3957 0.2% AS16611 --
The Cidr Report
This report has been generated at Fri Jul 10 21:11:56 2009 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
03-07-09295814 183157
04-07-09295958 183245
05-07-09296123 183445
06-07-09296112 182493
07-07-09296178 183018
08-07-09296083 183374
09-07-09296233 177784
10-07-09296253 178388
AS Summary
31812 Number of ASes in routing system
13509 Number of ASes announcing only one prefix
5232 Largest number of prefixes announced by an AS
AS8151 : Uninet S.A. de C.V.
89665792 Largest address span announced by an AS (/32s)
AS27064: DNIC-ASBLK-27032-27159 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 10Jul09 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 300261 179180 12108140.3% All ASes
AS6389 4259 336 392392.1% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS8151 5232 1372 386073.8% Uninet S.A. de C.V.
AS4323 4291 1635 265661.9% TWTC - tw telecom holdings,
inc.
AS4766 1809 525 128471.0% KIXS-AS-KR Korea Telecom
AS17488 1536 305 123180.1% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS1785 1709 611 109864.2% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS4755 1217 193 102484.1% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS22773 1075 70 100593.5% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS18566 1062 244 81877.0% COVAD - Covad Communications
Co.
AS19262 1018 236 78276.8% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS8452 993 255 73874.3% TEDATA TEDATA
AS3356 1195 478 71760.0% LEVEL3 Level 3 Communications
AS18101 750 41 70994.5% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS17908 688 51 63792.6% TCISL Tata Communications
AS4804 682 67 61590.2% MPX-AS Microplex PTY LTD
AS6478 1209 611 59849.5% ATT-INTERNET3 - ATT WorldNet
Services
AS11492 1127 531 59652.9% CABLEONE - CABLE ONE, INC.
AS855623 64 55989.7% CANET-ASN-4 - Bell Aliant
Regional Communications, Inc.
AS9498 625 78 54787.5% BBIL-AP BHARTI Airtel Ltd.
AS4134 979 437 54255.4% CHINANET-BACKBONE
No.31,Jin-rong Street
AS24560 725 192 53373.5% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS22047 543 14 52997.4% VTR BANDA ANCHA S.A.
AS10620 923 400 52356.7% TV Cable S.A.
AS7303 590 93 49784.2% Telecom Argentina S.A.
AS17676 564 78 48686.2% GIGAINFRA Softbank BB Corp.
AS4808 660 180 48072.7% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS7018 1504 1051 45330.1% ATT-INTERNET4 - ATT WorldNet
Services
AS9443 528 83 44584.3% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS7011 986 570 41642.2% FRONTIER-AND-CITIZENS -
Frontier Communications of
America, Inc.
AS5668 780 366 41453.1% AS-5668 - CenturyTel Internet
Holdings, Inc.
Total 39882111672871572.0% Top
BGP Update Report
BGP Update Report Interval: 25-Jun-09 -to- 02-Jul-09 (8 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS919886810 4.5% 299.3 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 2 - AS475531871 1.6% 26.5 -- TATACOMM-AS TATA Communications formerly VSNL is Leading ISP 3 - AS17488 28227 1.4% 24.6 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 4 - AS10474 17094 0.9% 416.9 -- NETACTIVE 5 - AS22783 14699 0.8%2449.8 -- WEBPOWER - WebPower, Inc. 6 - AS21104 14329 0.7%1023.5 -- AM-NETSYS-AS Netsys JVC Autonomous System Yerevan, Armenia 7 - AS638914119 0.7% 3.3 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 8 - AS21491 12942 0.7% 479.3 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa 9 - AS23700 12849 0.7% 31.0 -- BM-AS-ID PT. Broadband Multimedia, Tbk 10 - AS33783 11714 0.6% 90.8 -- EEPAD 11 - AS30890 11347 0.6% 27.1 -- EVOLVA Evolva Telecom 12 - AS47408 11043 0.6% 525.9 -- MANDARIN-AS Mandarin WIMAX Sicilia SpA 13 - AS30969 10906 0.6% 605.9 -- TAN-NET TransAfrica Networks 14 - AS481210307 0.5% 11.5 -- CHINANET-SH-AP China Telecom (Group) 15 - AS8452 8289 0.4% 8.6 -- TEDATA TEDATA 16 - AS1221 8218 0.4% 14.1 -- ASN-TELSTRA Telstra Pty Ltd 17 - AS4134 8065 0.4% 8.2 -- CHINANET-BACKBONE No.31,Jin-rong Street 18 - AS8151 7899 0.4% 5.4 -- Uninet S.A. de C.V. 19 - AS248637693 0.4% 8.8 -- LINKdotNET-AS 20 - AS5668 7672 0.4% 7.5 -- AS-5668 - CenturyTel Internet Holdings, Inc. TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS22783 14699 0.8%2449.8 -- WEBPOWER - WebPower, Inc. 2 - AS366165425 0.3%1356.2 -- AGTLD - VeriSign Global Registry Services 3 - AS476401315 0.1%1315.0 -- TRICOMPAS Tricomp Sp. z. o. o. 4 - AS21104 14329 0.7%1023.5 -- AM-NETSYS-AS Netsys JVC Autonomous System Yerevan, Armenia 5 - AS29508 850 0.0% 850.0 -- TANAT-AS TANAT LLC 6 - AS41189 719 0.0% 719.0 -- ICONCEPT-AS iConcept 7 - AS370113721 0.2% 620.2 -- MSTARTEL-AS 8 - AS30969 10906 0.6% 605.9 -- TAN-NET TransAfrica Networks 9 - AS47408 11043 0.6% 525.9 -- MANDARIN-AS Mandarin WIMAX Sicilia SpA 10 - AS255464205 0.2% 525.6 -- BROOKLANDCOMP-AS Brookland Computer Services 11 - AS354002555 0.1% 511.0 -- MFIST Interregoinal Organization Network Technologies 12 - AS276532015 0.1% 503.8 -- Alpha Communications Network 13 - AS21491 12942 0.7% 479.3 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa 14 - AS10474 17094 0.9% 416.9 -- NETACTIVE 15 - AS13403 415 0.0% 415.0 -- ALAWEB-INTERNET - ALAWEB Internet Services 16 - AS36975 403 0.0% 403.0 -- CBA-AS 17 - AS37083 403 0.0% 403.0 -- hiqos-as 18 - AS38136 764 0.0% 382.0 -- MBTELTRANSIT-BD MB TELECCOM LIMITED, INTERNET SERVICE PROVIDER 19 - AS33074 370 0.0% 370.0 -- ISC-NBO1 ISC, Nairobi, Kenya 20 - AS5050 5932 0.3% 348.9 -- PSC-EXT - Pittsburgh Supercomputing Center TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 95.59.8.0/23 10566 0.5% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 2 - 95.59.2.0/23 10565 0.5% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 3 - 95.59.4.0/22 10565 0.5% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 4 - 92.46.244.0/2310561 0.5% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 5 - 89.218.220.0/23 10561 0.5% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 6 - 89.218.218.0/23 10560 0.5% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 7 - 95.59.1.0/24 9892 0.5% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 8 - 88.204.221.0/249866 0.5% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 9 - 80.86.238.0/24 7170 0.3% AS21104 -- AM-NETSYS-AS Netsys JVC Autonomous System Yerevan, Armenia 10 - 80.86.239.0/24 6938 0.3% AS21104 -- AM-NETSYS-AS Netsys JVC Autonomous System Yerevan, Armenia 11 - 72.23.246.0/24 5834 0.3% AS5050 -- PSC-EXT - Pittsburgh Supercomputing Center 12 - 205.246.203.0/24 5686 0.3% AS22783 -- WEBPOWER - WebPower, Inc. 13 - 63.163.66.0/24 5684 0.3% AS22783 --
The Cidr Report
This report has been generated at Fri Jul 3 21:13:55 2009 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
26-06-09295286 183129
27-06-09295497 183044
28-06-09295496 183041
29-06-09295193 183133
30-06-09295131 183378
01-07-09295500 183533
02-07-09295531 183261
03-07-09295814 183377
AS Summary
31731 Number of ASes in routing system
13470 Number of ASes announcing only one prefix
4291 Largest number of prefixes announced by an AS
AS4323 : TWTC - tw telecom holdings, inc.
89737216 Largest address span announced by an AS (/32s)
AS27064: DNIC-ASBLK-27032-27159 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 03Jul09 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 295702 183220 11248238.0% All ASes
AS6389 4266 337 392992.1% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4291 1806 248557.9% TWTC - tw telecom holdings,
inc.
AS4766 1811 528 128370.8% KIXS-AS-KR Korea Telecom
AS17488 1537 279 125881.8% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS4755 1213 193 102084.1% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS1785 1705 689 101659.6% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS22773 1071 71 100093.4% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS18566 1062 95 96791.1% COVAD - Covad Communications
Co.
AS8151 1460 558 90261.8% Uninet S.A. de C.V.
AS19262 1017 235 78276.9% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS8452 994 272 72272.6% TEDATA TEDATA
AS18101 754 115 63984.7% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS17908 684 57 62791.7% TCISL Tata Communications
AS6478 1206 617 58948.8% ATT-INTERNET3 - ATT WorldNet
Services
AS4804 681 109 57284.0% MPX-AS Microplex PTY LTD
AS9498 641 75 56688.3% BBIL-AP BHARTI Airtel Ltd.
AS7029 612 107 50582.5% WINDSTREAM - Windstream
Communications Inc
AS11492 1122 619 50344.8% CABLEONE - CABLE ONE, INC.
AS17676 564 80 48485.8% GIGAINFRA Softbank BB Corp.
AS4808 651 170 48173.9% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS22047 601 126 47579.0% VTR BANDA ANCHA S.A.
AS10620 920 457 46350.3% TV Cable S.A.
AS7018 1504 1048 45630.3% ATT-INTERNET4 - ATT WorldNet
Services
AS4134 977 530 44745.8% CHINANET-BACKBONE
No.31,Jin-rong Street
AS24560 724 278 44661.6% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS9443 521 82 43984.3% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS7545 830 414 41650.1% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS7011 984 570 41442.1% FRONTIER-AND-CITIZENS -
Frontier Communications of
America, Inc.
AS4668 693 285 40858.9% LGNET-AS-KR LG CNS
AS7303 573 165 40871.2% Telecom Argentina S.A.
Total 35669109672470269.3% Top 30 total
Possible
BGP Update Report
BGP Update Report Interval: 25-Jun-09 -to- 02-Jul-09 (7 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS919886810 4.5% 299.3 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 2 - AS475531871 1.6% 26.5 -- TATACOMM-AS TATA Communications formerly VSNL is Leading ISP 3 - AS17488 28227 1.4% 24.6 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 4 - AS10474 17094 0.9% 416.9 -- NETACTIVE 5 - AS22783 14699 0.8%2449.8 -- WEBPOWER - WebPower, Inc. 6 - AS21104 14329 0.7%1023.5 -- AM-NETSYS-AS Netsys JVC Autonomous System Yerevan, Armenia 7 - AS638914119 0.7% 3.3 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 8 - AS21491 12942 0.7% 479.3 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa 9 - AS23700 12849 0.7% 31.0 -- BM-AS-ID PT. Broadband Multimedia, Tbk 10 - AS33783 11714 0.6% 90.8 -- EEPAD 11 - AS30890 11347 0.6% 27.1 -- EVOLVA Evolva Telecom 12 - AS47408 11043 0.6% 525.9 -- MANDARIN-AS Mandarin WIMAX Sicilia SpA 13 - AS30969 10906 0.6% 605.9 -- TAN-NET TransAfrica Networks 14 - AS481210307 0.5% 11.5 -- CHINANET-SH-AP China Telecom (Group) 15 - AS8452 8289 0.4% 8.6 -- TEDATA TEDATA 16 - AS1221 8218 0.4% 14.1 -- ASN-TELSTRA Telstra Pty Ltd 17 - AS4134 8065 0.4% 8.2 -- CHINANET-BACKBONE No.31,Jin-rong Street 18 - AS8151 7899 0.4% 5.4 -- Uninet S.A. de C.V. 19 - AS248637693 0.4% 8.8 -- LINKdotNET-AS 20 - AS5668 7672 0.4% 7.5 -- AS-5668 - CenturyTel Internet Holdings, Inc. TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS22783 14699 0.8%2449.8 -- WEBPOWER - WebPower, Inc. 2 - AS366165425 0.3%1356.2 -- AGTLD - VeriSign Global Registry Services 3 - AS476401315 0.1%1315.0 -- TRICOMPAS Tricomp Sp. z. o. o. 4 - AS21104 14329 0.7%1023.5 -- AM-NETSYS-AS Netsys JVC Autonomous System Yerevan, Armenia 5 - AS29508 850 0.0% 850.0 -- TANAT-AS TANAT LLC 6 - AS41189 719 0.0% 719.0 -- ICONCEPT-AS iConcept 7 - AS370113721 0.2% 620.2 -- MSTARTEL-AS 8 - AS30969 10906 0.6% 605.9 -- TAN-NET TransAfrica Networks 9 - AS47408 11043 0.6% 525.9 -- MANDARIN-AS Mandarin WIMAX Sicilia SpA 10 - AS255464205 0.2% 525.6 -- BROOKLANDCOMP-AS Brookland Computer Services 11 - AS354002555 0.1% 511.0 -- MFIST Interregoinal Organization Network Technologies 12 - AS276532015 0.1% 503.8 -- Alpha Communications Network 13 - AS21491 12942 0.7% 479.3 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa 14 - AS10474 17094 0.9% 416.9 -- NETACTIVE 15 - AS13403 415 0.0% 415.0 -- ALAWEB-INTERNET - ALAWEB Internet Services 16 - AS36975 403 0.0% 403.0 -- CBA-AS 17 - AS37083 403 0.0% 403.0 -- hiqos-as 18 - AS38136 764 0.0% 382.0 -- MBTELTRANSIT-BD MB TELECCOM LIMITED, INTERNET SERVICE PROVIDER 19 - AS33074 370 0.0% 370.0 -- ISC-NBO1 ISC, Nairobi, Kenya 20 - AS5050 5932 0.3% 348.9 -- PSC-EXT - Pittsburgh Supercomputing Center TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 95.59.8.0/23 10566 0.5% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 2 - 95.59.2.0/23 10565 0.5% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 3 - 95.59.4.0/22 10565 0.5% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 4 - 92.46.244.0/2310561 0.5% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 5 - 89.218.220.0/23 10561 0.5% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 6 - 89.218.218.0/23 10560 0.5% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 7 - 95.59.1.0/24 9892 0.5% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 8 - 88.204.221.0/249866 0.5% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 9 - 80.86.238.0/24 7170 0.3% AS21104 -- AM-NETSYS-AS Netsys JVC Autonomous System Yerevan, Armenia 10 - 80.86.239.0/24 6938 0.3% AS21104 -- AM-NETSYS-AS Netsys JVC Autonomous System Yerevan, Armenia 11 - 72.23.246.0/24 5834 0.3% AS5050 -- PSC-EXT - Pittsburgh Supercomputing Center 12 - 205.246.203.0/24 5686 0.3% AS22783 -- WEBPOWER - WebPower, Inc. 13 - 63.163.66.0/24 5684 0.3% AS22783 --
BGP Update Report
BGP Update Report Interval: 11-Jun-09 -to- 18-Jun-09 (8 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS919883410 7.5% 842.5 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 2 - AS34744 30544 2.7% 161.6 -- GVM SC GVM SISTEM 2003 SRL 3 - AS33783 21402 1.9% 171.2 -- EEPAD 4 - AS30890 15475 1.4% 29.4 -- EVOLVA Evolva Telecom 5 - AS21491 11941 1.1% 398.0 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa 6 - AS47408 11550 1.0% 825.0 -- MANDARIN-AS Mandarin WIMAX Sicilia SpA 7 - AS17974 10815 1.0% 12.1 -- TELKOMNET-AS2-AP PT Telekomunikasi Indonesia 8 - AS7738 8436 0.8% 21.3 -- Telecomunicacoes da Bahia S.A. 9 - AS201157779 0.7% 7.0 -- CHARTER-NET-HKY-NC - Charter Communications 10 - AS8452 7678 0.7% 8.3 -- TEDATA TEDATA 11 - AS293727317 0.7% 118.0 -- SFR-NETWORK SFR 12 - AS2697 6463 0.6% 99.4 -- ERX-ERNET-AS Education and Research Network 13 - AS358056432 0.6% 17.9 -- UTG-AS United Telecom AS 14 - AS160916373 0.6%6373.0 -- SATEC SATEC AS 15 - AS270466193 0.6% 38.5 -- DNIC-ASBLK-27032-27159 - DoD Network Information Center 16 - AS5050 6091 0.6%3045.5 -- PSC-EXT - Pittsburgh Supercomputing Center 17 - AS4855 6048 0.5% 104.3 -- PI-ID-AS-AP Pacific Link Indonesia 18 - AS290496012 0.5% 19.0 -- DELTA-TELECOM-AS Delta Telecom LTD. 19 - AS255465853 0.5%5853.0 -- BROOKLANDCOMP-AS Brookland Computer Services 20 - AS6389 5706 0.5% 2.7 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS160916373 0.6%6373.0 -- SATEC SATEC AS 2 - AS255465853 0.5%5853.0 -- BROOKLANDCOMP-AS Brookland Computer Services 3 - AS5050 6091 0.6%3045.5 -- PSC-EXT - Pittsburgh Supercomputing Center 4 - AS5691 2913 0.3%2913.0 -- MITRE-AS-5 - The MITRE Corporation 5 - AS650012011 0.2%2011.0 -- -Private Use AS- 6 - AS233841777 0.2%1777.0 -- REEDTECH - Reed Technology and Information Services, Inc. 7 - AS323431627 0.1%1627.0 -- INTRINSIC-THERAPEUTICS - Intrinsic Orthopedics/Therapeutics, Inc. 8 - AS650111570 0.1%1570.0 -- -Private Use AS- 9 - AS8225 1563 0.1%1563.0 -- ASTELIT-MSK-AS Astelit Autonomous System 10 - AS919883410 7.5% 842.5 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 11 - AS47408 11550 1.0% 825.0 -- MANDARIN-AS Mandarin WIMAX Sicilia SpA 12 - AS227834733 0.4% 788.8 -- WEBPOWER - WebPower, Inc. 13 - AS1734 1435 0.1% 717.5 -- ROP-COCA-AS01 - Contra Costa County Regional Occupation Program / Richmond 14 - AS20583 665 0.1% 665.0 -- ABNAMROKZ-AS SJSB ABN AMRO Bank Kazakhstan JSC 15 - AS44774 560 0.1% 560.0 -- ZOLOTOY-KLYUCHIK-AS Zolotoy Klyuchik Ltd. 16 - AS476401507 0.1% 502.3 -- TRICOMPAS Tricomp Sp. z. o. o. 17 - AS4796 473 0.0% 473.0 -- BANDUNG-NET-AS-AP Institute of Technology Bandung 18 - AS400603735 0.3% 466.9 -- AAAWI - AAA Wireless, Inc. 19 - AS30947 434 0.0% 434.0 -- PLURICANAL-AS Pluricanal, SA 20 - AS21491 11941 1.1% 398.0 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 95.59.1.0/24 10584 0.9% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 2 - 88.204.221.0/24 10562 0.9% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 3 - 89.218.218.0/23 10280 0.8% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 4 - 89.218.220.0/23 10280 0.8% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 5 - 95.59.4.0/22 10276 0.8% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 6 - 95.59.2.0/23 10273 0.8% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 7 - 92.46.244.0/2310272 0.8% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 8 - 95.59.8.0/23 10271 0.8% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 9 - 213.164.56.0/226373 0.5% AS16091 -- SATEC SATEC AS 10 - 72.23.246.0/24 6059 0.5% AS5050 -- PSC-EXT - Pittsburgh Supercomputing Center 11 - 193.201.184.0/21 5853 0.5% AS25546 -- BROOKLANDCOMP-AS Brookland Computer Services 12 - 118.98.240.0/20
The Cidr Report
This report has been generated at Fri Jun 19 21:13:57 2009 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
12-06-09294158 183382
13-06-09294150 183283
14-06-09293984 183407
15-06-09294154 183329
16-06-09294209 183622
17-06-09294401 183709
18-06-09294664 183895
19-06-09295035 183967
AS Summary
31610 Number of ASes in routing system
13435 Number of ASes announcing only one prefix
4284 Largest number of prefixes announced by an AS
AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc.
89739520 Largest address span announced by an AS (/32s)
AS27064: DNIC-ASBLK-27032-27159 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 19Jun09 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 294947 183929 11101837.6% All ASes
AS6389 4284 343 394192.0% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4277 1778 249958.4% TWTC - tw telecom holdings,
inc.
AS4766 1814 520 129471.3% KIXS-AS-KR Korea Telecom
AS17488 1601 310 129180.6% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS1785 1694 662 103260.9% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS4755 1214 194 102084.0% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS22773 1064 67 99793.7% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS8151 1466 585 88160.1% Uninet S.A. de C.V.
AS19262 1015 232 78377.1% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS8452 987 275 71272.1% TEDATA TEDATA
AS18566 1062 423 63960.2% COVAD - Covad Communications
Co.
AS6478 1376 749 62745.6% ATT-INTERNET3 - ATT WorldNet
Services
AS18101 750 167 58377.7% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS4804 679 107 57284.2% MPX-AS Microplex PTY LTD
AS17908 674 137 53779.7% TCISL Tata Communications
AS11492 1116 588 52847.3% CABLEONE - CABLE ONE, INC.
AS9498 639 141 49877.9% BBIL-AP BHARTI Airtel Ltd.
AS2706 536 44 49291.8% PI-HK Pacnet Internet (Hong
Kong) Limited
AS17676 564 80 48485.8% GIGAINFRA Softbank BB Corp.
AS7029 601 121 48079.9% WINDSTREAM - Windstream
Communications Inc
AS24560 718 241 47766.4% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS4808 641 165 47674.3% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS4134 890 418 47253.0% CHINANET-BACKBONE
No.31,Jin-rong Street
AS22047 599 129 47078.5% VTR BANDA ANCHA S.A.
AS7018 1501 1046 45530.3% ATT-INTERNET4 - ATT WorldNet
Services
AS7545 819 382 43753.4% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS6517 673 246 42763.4% RELIANCEGLOBALCOM - Reliance
Globalcom Services, Inc
AS9443 514 90 42482.5% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS7011 981 567 41442.2% FRONTIER-AND-CITIZENS -
Frontier Communications of
BGP Update Report
BGP Update Report Interval: 28-Apr-09 -to- 29-May-09 (32 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS919858785 1.0% 233.3 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 2 - AS638957303 1.0% 13.1 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 3 - AS21491 54595 0.9%1819.8 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa 4 - AS845253246 0.9% 41.6 -- TEDATA TEDATA 5 - AS815148723 0.8% 12.6 -- Uninet S.A. de C.V. 6 - AS313046229 0.8% 179.9 -- RGNET-3130 RGnet/PSGnet 7 - AS35805 45913 0.8% 127.2 -- UTG-AS United Telecom AS 8 - AS17974 36111 0.6% 33.2 -- TELKOMNET-AS2-AP PT Telekomunikasi Indonesia 9 - AS10834 35811 0.6% 14.1 -- Telefonica Data Argentina S.A. 10 - AS20115 35268 0.6% 20.9 -- CHARTER-NET-HKY-NC - Charter Communications 11 - AS505634984 0.6% 296.5 -- INS-NET-2 - Iowa Network Services 12 - AS424932651 0.6% 180.4 -- LILLY-AS - Eli Lilly and Company 13 - AS17488 32059 0.5% 19.0 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 14 - AS33776 31203 0.5% 269.0 -- STARCOMMS-ASN 15 - AS432330360 0.5% 7.0 -- TWTC - tw telecom holdings, inc. 16 - AS30890 26554 0.5% 48.8 -- EVOLVA Evolva Telecom 17 - AS292025925 0.4% 316.2 -- LACOE - Los Angeles County Office of Education 18 - AS29372 25107 0.4% 317.8 -- SFR-NETWORK SFR 19 - AS505025065 0.4%1790.4 -- PSC-EXT - Pittsburgh Supercomputing Center 20 - AS10620 24077 0.4% 24.3 -- TV Cable S.A. TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS16931 18144 0.3%9072.0 -- GLOBAL-PAYMENTS-1 - Global Payments, Inc. 2 - AS15045 16317 0.3%4079.2 -- KITTELSON - KITTELSON AND ASSOCIATES, INC. 3 - AS23535 0.1% 4.0 -- NAVITAIRE-AS-AU-AP Accenture - Navitaire, 4 - AS32398 20661 0.3%3443.5 -- REALNET-ASN-1 5 - AS131532542 0.0%2542.0 -- ONEWORLD OneWorld S.A. 6 - AS292292444 0.0%2444.0 -- ASDA-AS Assotiation for the Development of West Athens 7 - AS8499 2252 0.0%2252.0 -- Space Hellas Network Operation Center (NOC) 8 - AS13325 16858 0.3%2107.2 -- STOMI - State of Michigan, DMB-CNOC 9 - AS398034171 0.1%2085.5 -- UTI-AS SC UTI COMMUNICATIONS SYSTEMS SRL 10 - AS396995751 0.1%1917.0 -- SSPOY-AS Salon Seudun Puhelin Oy 11 - AS476405581 0.1%1860.3 -- TRICOMPAS Tricomp Sp. z. o. o. 12 - AS21491 54595 0.9%1819.8 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa 13 - AS505025065 0.4%1790.4 -- PSC-EXT - Pittsburgh Supercomputing Center 14 - AS172361271 0.0%1271.0 -- TULSAL-74103 - Tulsa City-County Library 15 - AS354007612 0.1%1268.7 -- MFIST Interregoinal Organization Network Technologies 16 - AS282561241 0.0%1241.0 -- 17 - AS289532317 0.0%1158.5 -- PIRAEUSBANK Greek banking institution 18 - AS472991086 0.0%1086.0 -- DRSA-AS Dlugie Rozmowy S.A. 19 - AS414921082 0.0%1082.0 -- EXIMBANK-AS SC Eximbank SA 20 - AS249942136 0.0%1068.0 -- GENESYS-AS GENESYS Informatica AS for announcing own prefixes TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 72.23.246.0/2424597 0.4% AS5050 -- PSC-EXT - Pittsburgh Supercomputing Center 2 - 41.204.2.0/24 20567 0.3% AS32398 -- REALNET-ASN-1 3 - 64.69.192.0/2018134 0.3% AS16931 -- GLOBAL-PAYMENTS-1 - Global Payments, Inc. 4 - 192.12.120.0/24 10437 0.2% AS5691 -- MITRE-AS-5 - The MITRE Corporation 5 - 89.218.218.0/237837 0.1% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 6 - 89.218.220.0/237833 0.1% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 7 - 92.46.244.0/23 7830 0.1% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 8 - 95.59.4.0/22 7823 0.1% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 9 - 95.59.2.0/23 7818 0.1% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 10 - 95.59.8.0/23 7817 0.1% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 11 - 123.49.152.0/247538 0.1% AS18118 -- CITICNET-AP CITIC Networks Management Co.,Ltd. 12 - 90.150.0.0/24 7284 0.1% AS35400 -- MFIST Interregoinal Organization Network Technologies 13 - 63.144.223.0/247006 0.1% AS30221 -- T3COM - T3
The Cidr Report
This report has been generated at Fri Jun 12 21:13:51 2009 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
05-06-09293617 183706
06-06-09294620 183567
07-06-09294066 182882
08-06-09294012 183175
09-06-09294091 183252
10-06-09293965 183136
11-06-09292531 183769
12-06-09294158 183680
AS Summary
31555 Number of ASes in routing system
13395 Number of ASes announcing only one prefix
4288 Largest number of prefixes announced by an AS
AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc.
89748736 Largest address span announced by an AS (/32s)
AS27064: DNIC-ASBLK-27032-27159 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 12Jun09 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 294180 183434 11074637.6% All ASes
AS6389 4288 343 394592.0% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4273 1780 249358.3% TWTC - tw telecom holdings,
inc.
AS17488 1600 299 130181.3% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS4766 1815 520 129571.3% KIXS-AS-KR Korea Telecom
AS4755 1243 144 109988.4% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS1785 1685 642 104361.9% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS22773 1062 67 99593.7% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS8151 1464 548 91662.6% Uninet S.A. de C.V.
AS19262 1014 236 77876.7% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS8452 981 278 70371.7% TEDATA TEDATA
AS18566 1062 423 63960.2% COVAD - Covad Communications
Co.
AS18101 753 157 59679.2% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS17908 656 66 59089.9% TCISL Tata Communications
AS6478 1375 790 58542.5% ATT-INTERNET3 - ATT WorldNet
Services
AS4804 679 107 57284.2% MPX-AS Microplex PTY LTD
AS11492 584 52747.4% CABLEONE - CABLE ONE, INC.
AS22047 591 88 50385.1% VTR BANDA ANCHA S.A.
AS7029 605 105 50082.6% WINDSTREAM - Windstream
Communications Inc
AS2706 536 44 49291.8% PI-HK Pacnet Internet (Hong
Kong) Limited
AS17676 564 80 48485.8% GIGAINFRA Softbank BB Corp.
AS24560 714 246 46865.5% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS7018 1507 1042 46530.9% ATT-INTERNET4 - ATT WorldNet
Services
AS4808 631 166 46573.7% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS4134 892 434 45851.3% CHINANET-BACKBONE
No.31,Jin-rong Street
AS7545 810 383 42752.7% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS9443 514 90 42482.5% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS7011 977 564 41342.3% FRONTIER-AND-CITIZENS -
Frontier Communications of
America, Inc.
AS4668 693 284 40959.0% LGNET-AS-KR LG CNS
AS6517 650 246 40462.2% RELIANCEGLOBALCOM - Reliance
Globalcom
BGP Update Report
BGP Update Report Interval: 28-Apr-09 -to- 29-May-09 (32 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS919858785 1.0% 233.3 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 2 - AS638957303 1.0% 13.1 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 3 - AS21491 54595 0.9%1819.8 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa 4 - AS845253246 0.9% 41.6 -- TEDATA TEDATA 5 - AS815148723 0.8% 12.6 -- Uninet S.A. de C.V. 6 - AS313046229 0.8% 179.9 -- RGNET-3130 RGnet/PSGnet 7 - AS35805 45913 0.8% 127.2 -- UTG-AS United Telecom AS 8 - AS17974 36111 0.6% 33.2 -- TELKOMNET-AS2-AP PT Telekomunikasi Indonesia 9 - AS10834 35811 0.6% 14.1 -- Telefonica Data Argentina S.A. 10 - AS20115 35268 0.6% 20.9 -- CHARTER-NET-HKY-NC - Charter Communications 11 - AS505634984 0.6% 296.5 -- INS-NET-2 - Iowa Network Services 12 - AS424932651 0.6% 180.4 -- LILLY-AS - Eli Lilly and Company 13 - AS17488 32059 0.5% 19.0 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 14 - AS33776 31203 0.5% 269.0 -- STARCOMMS-ASN 15 - AS432330360 0.5% 7.0 -- TWTC - tw telecom holdings, inc. 16 - AS30890 26554 0.5% 48.8 -- EVOLVA Evolva Telecom 17 - AS292025925 0.4% 316.2 -- LACOE - Los Angeles County Office of Education 18 - AS29372 25107 0.4% 317.8 -- SFR-NETWORK SFR 19 - AS505025065 0.4%1790.4 -- PSC-EXT - Pittsburgh Supercomputing Center 20 - AS10620 24077 0.4% 24.3 -- TV Cable S.A. TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS16931 18144 0.3%9072.0 -- GLOBAL-PAYMENTS-1 - Global Payments, Inc. 2 - AS15045 16317 0.3%4079.2 -- KITTELSON - KITTELSON AND ASSOCIATES, INC. 3 - AS23535 0.1% 4.0 -- NAVITAIRE-AS-AU-AP Accenture - Navitaire, 4 - AS32398 20661 0.3%3443.5 -- REALNET-ASN-1 5 - AS131532542 0.0%2542.0 -- ONEWORLD OneWorld S.A. 6 - AS292292444 0.0%2444.0 -- ASDA-AS Assotiation for the Development of West Athens 7 - AS8499 2252 0.0%2252.0 -- Space Hellas Network Operation Center (NOC) 8 - AS13325 16858 0.3%2107.2 -- STOMI - State of Michigan, DMB-CNOC 9 - AS398034171 0.1%2085.5 -- UTI-AS SC UTI COMMUNICATIONS SYSTEMS SRL 10 - AS396995751 0.1%1917.0 -- SSPOY-AS Salon Seudun Puhelin Oy 11 - AS476405581 0.1%1860.3 -- TRICOMPAS Tricomp Sp. z. o. o. 12 - AS21491 54595 0.9%1819.8 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa 13 - AS505025065 0.4%1790.4 -- PSC-EXT - Pittsburgh Supercomputing Center 14 - AS172361271 0.0%1271.0 -- TULSAL-74103 - Tulsa City-County Library 15 - AS354007612 0.1%1268.7 -- MFIST Interregoinal Organization Network Technologies 16 - AS282561241 0.0%1241.0 -- 17 - AS289532317 0.0%1158.5 -- PIRAEUSBANK Greek banking institution 18 - AS472991086 0.0%1086.0 -- DRSA-AS Dlugie Rozmowy S.A. 19 - AS414921082 0.0%1082.0 -- EXIMBANK-AS SC Eximbank SA 20 - AS249942136 0.0%1068.0 -- GENESYS-AS GENESYS Informatica AS for announcing own prefixes TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 72.23.246.0/2424597 0.4% AS5050 -- PSC-EXT - Pittsburgh Supercomputing Center 2 - 41.204.2.0/24 20567 0.3% AS32398 -- REALNET-ASN-1 3 - 64.69.192.0/2018134 0.3% AS16931 -- GLOBAL-PAYMENTS-1 - Global Payments, Inc. 4 - 192.12.120.0/24 10437 0.2% AS5691 -- MITRE-AS-5 - The MITRE Corporation 5 - 89.218.218.0/237837 0.1% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 6 - 89.218.220.0/237833 0.1% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 7 - 92.46.244.0/23 7830 0.1% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 8 - 95.59.4.0/22 7823 0.1% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 9 - 95.59.2.0/23 7818 0.1% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 10 - 95.59.8.0/23 7817 0.1% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 11 - 123.49.152.0/247538 0.1% AS18118 -- CITICNET-AP CITIC Networks Management Co.,Ltd. 12 - 90.150.0.0/24 7284 0.1% AS35400 -- MFIST Interregoinal Organization Network Technologies 13 - 63.144.223.0/247006 0.1% AS30221 -- T3COM - T3
The Cidr Report
This report has been generated at Fri Jun 5 21:13:44 2009 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
29-05-09295132 184547
30-05-09295389 184322
31-05-09295380 183255
01-06-09295277 183168
02-06-09295685 183097
03-06-09293672 183636
04-06-09293913 183558
05-06-09293617 183556
AS Summary
31505 Number of ASes in routing system
13383 Number of ASes announcing only one prefix
4292 Largest number of prefixes announced by an AS
AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc.
89749760 Largest address span announced by an AS (/32s)
AS27064: DNIC-ASBLK-27032-27159 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 05Jun09 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 294557 183702 11085537.6% All ASes
AS6389 4292 338 395492.1% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4274 1775 249958.5% TWTC - tw telecom holdings,
inc.
AS8151 2003 633 137068.4% Uninet S.A. de C.V.
AS4766 1815 521 129471.3% KIXS-AS-KR Korea Telecom
AS17488 1593 299 129481.2% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS4755 1242 143 109988.5% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS22773 1061 68 99393.6% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS1785 1685 780 90553.7% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS8452 1207 316 89173.8% TEDATA TEDATA
AS19262 1011 234 77776.9% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS18566 1062 423 63960.2% COVAD - Covad Communications
Co.
AS6478 1399 788 61143.7% ATT-INTERNET3 - ATT WorldNet
Services
AS18101 752 160 59278.7% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS4804 679 107 57284.2% MPX-AS Microplex PTY LTD
AS11492 1113 582 53147.7% CABLEONE - CABLE ONE, INC.
AS22047 588 92 49684.4% VTR BANDA ANCHA S.A.
AS2706 536 44 49291.8% HKSUPER-HK-AP Pacific Internet
(Hong Kong) Limited
AS17676 564 80 48485.8% GIGAINFRA Softbank BB Corp.
AS4134 892 421 47152.8% CHINANET-BACKBONE
No.31,Jin-rong Street
AS4808 631 166 46573.7% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS7018 1496 1033 46330.9% ATT-INTERNET4 - ATT WorldNet
Services
AS24560 695 245 45064.7% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS7545 805 378 42753.0% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS12479 449 24 42594.7% UNI2-AS Uni2 Autonomous System
AS9443 513 90 42382.5% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS7011 976 563 41342.3% FRONTIER-AND-CITIZENS -
Frontier Communications of
America, Inc.
AS4668 691 283 40859.0% LGNET-AS-KR LG CNS
AS6517 651 243 40862.7% RELIANCEGLOBALCOM - Reliance
Globalcom Services, Inc
AS17908 645 244 40162.2% TCISL Tata Communications
AS4780 521 135 386
BGP Update Report
BGP Update Report Interval: 27-Apr-09 -to- 28-May-09 (32 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS638957046 1.0% 13.1 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 2 - AS313056336 1.0% 219.2 -- RGNET-3130 RGnet/PSGnet 3 - AS21491 54810 0.9%1827.0 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa 4 - AS845252258 0.9% 40.8 -- TEDATA TEDATA 5 - AS919849179 0.8% 195.2 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 6 - AS815148481 0.8% 12.5 -- Uninet S.A. de C.V. 7 - AS35805 45909 0.8% 127.2 -- UTG-AS United Telecom AS 8 - AS10834 35770 0.6% 14.1 -- Telefonica Data Argentina S.A. 9 - AS505635066 0.6% 297.2 -- INS-NET-2 - Iowa Network Services 10 - AS17974 34031 0.6% 31.3 -- TELKOMNET-AS2-AP PT Telekomunikasi Indonesia 11 - AS20115 33737 0.6% 20.0 -- CHARTER-NET-HKY-NC - Charter Communications 12 - AS33776 32231 0.6% 277.9 -- STARCOMMS-ASN 13 - AS17488 31963 0.5% 18.9 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 14 - AS432330316 0.5% 7.0 -- TWTC - tw telecom holdings, inc. 15 - AS424928270 0.5% 156.2 -- LILLY-AS - Eli Lilly and Company 16 - AS30890 26540 0.5% 48.8 -- EVOLVA Evolva Telecom 17 - AS292025925 0.4% 316.2 -- LACOE - Los Angeles County Office of Education 18 - AS29372 25184 0.4% 318.8 -- SFR-NETWORK SFR 19 - AS505025141 0.4%1795.8 -- PSC-EXT - Pittsburgh Supercomputing Center 20 - AS10620 23454 0.4% 23.7 -- TV Cable S.A. TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS16931 17007 0.3%8503.5 -- GLOBAL-PAYMENTS-1 - Global Payments, Inc. 2 - AS15045 16892 0.3%4223.0 -- KITTELSON - KITTELSON AND ASSOCIATES, INC. 3 - AS23535 0.1% 4.0 -- NAVITAIRE-AS-AU-AP Accenture - Navitaire, 4 - AS32398 20671 0.3%3445.2 -- REALNET-ASN-1 5 - AS131532542 0.0%2542.0 -- ONEWORLD OneWorld S.A. 6 - AS292292444 0.0%2444.0 -- ASDA-AS Assotiation for the Development of West Athens 7 - AS13325 18334 0.3%2291.8 -- STOMI - State of Michigan, DMB-CNOC 8 - AS8499 2252 0.0%2252.0 -- Space Hellas Network Operation Center (NOC) 9 - AS398034065 0.1%2032.5 -- UTI-AS SC UTI COMMUNICATIONS SYSTEMS SRL 10 - AS396995751 0.1%1917.0 -- SSPOY-AS Salon Seudun Puhelin Oy 11 - AS476405542 0.1%1847.3 -- TRICOMPAS Tricomp Sp. z. o. o. 12 - AS21491 54810 0.9%1827.0 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa 13 - AS505025141 0.4%1795.8 -- PSC-EXT - Pittsburgh Supercomputing Center 14 - AS172361271 0.0%1271.0 -- TULSAL-74103 - Tulsa City-County Library 15 - AS354007569 0.1%1261.5 -- MFIST Interregoinal Organization Network Technologies 16 - AS282561241 0.0%1241.0 -- 17 - AS409671237 0.0%1237.0 -- CSF-AS CSF Computersoftware fuer Fachanwendungen GmbH 18 - AS289532317 0.0%1158.5 -- PIRAEUSBANK Greek banking institution 19 - AS472991086 0.0%1086.0 -- DRSA-AS Dlugie Rozmowy S.A. 20 - AS414921079 0.0%1079.0 -- EXIMBANK-AS SC Eximbank SA TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 72.23.246.0/2424675 0.4% AS5050 -- PSC-EXT - Pittsburgh Supercomputing Center 2 - 41.204.2.0/24 20577 0.3% AS32398 -- REALNET-ASN-1 3 - 64.69.192.0/2016997 0.3% AS16931 -- GLOBAL-PAYMENTS-1 - Global Payments, Inc. 4 - 192.12.120.0/24 10455 0.2% AS5691 -- MITRE-AS-5 - The MITRE Corporation 5 - 123.49.152.0/247531 0.1% AS18118 -- CITICNET-AP CITIC Networks Management Co.,Ltd. 6 - 90.150.0.0/24 7241 0.1% AS35400 -- MFIST Interregoinal Organization Network Technologies 7 - 63.144.223.0/247006 0.1% AS30221 -- T3COM - T3 Communications, Inc. 8 - 123.49.144.0/216882 0.1% AS18118 -- CITICNET-AP CITIC Networks Management Co.,Ltd. 9 - 89.218.218.0/236785 0.1% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 10 - 89.218.220.0/236781 0.1% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 11 - 92.46.244.0/23 6777 0.1% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 12 - 95.59.4.0/22 6772 0.1% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 13 - 95.59.2.0/23 6769 0.1% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 14 -
The Cidr Report
This report has been generated at Fri May 29 21:18:11 2009 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
22-05-09294690 184799
23-05-09295551 184429
24-05-09294596 184340
25-05-09294770 184572
26-05-09294994 184468
27-05-09295000 184460
28-05-09295111 184373
29-05-09295132 184408
AS Summary
31436 Number of ASes in routing system
13388 Number of ASes announcing only one prefix
4292 Largest number of prefixes announced by an AS
AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc.
89742080 Largest address span announced by an AS (/32s)
AS27064: DNIC-ASBLK-27032-27159 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 29May09 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 295258 184521 11073737.5% All ASes
AS6389 4292 338 395492.1% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4274 1782 249258.3% TWTC - tw telecom holdings,
inc.
AS209 2540 1160 138054.3% ASN-QWEST - Qwest
Communications Corporation
AS4766 1811 520 129171.3% KIXS-AS-KR Korea Telecom
AS17488 1587 303 128480.9% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS4755 1250 147 110388.2% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS22773 1059 68 99193.6% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS1785 1699 786 91353.7% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS8452 1202 318 88473.5% TEDATA TEDATA
AS8151 1451 581 87060.0% Uninet S.A. de C.V.
AS19262 998 238 76076.2% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS18566 1062 424 63860.1% COVAD - Covad Communications
Co.
AS18101 749 161 58878.5% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS6478 1398 822 57641.2% ATT-INTERNET3 - ATT WorldNet
Services
AS11492 1102 549 55350.2% CABLEONE - CABLE ONE, INC.
AS855623 102 52183.6% CANET-ASN-4 - Bell Aliant
Regional Communications, Inc.
AS22047 580 83 49785.7% VTR BANDA ANCHA S.A.
AS2706 536 44 49291.8% HKSUPER-HK-AP Pacific Internet
(Hong Kong) Limited
AS17676 564 80 48485.8% GIGAINFRA Softbank BB Corp.
AS4134 890 416 47453.3% CHINANET-BACKBONE
No.31,Jin-rong Street
AS7018 1500 1034 46631.1% ATT-INTERNET4 - ATT WorldNet
Services
AS4808 637 171 46673.2% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS9443 526 94 43282.1% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS24560 693 270 42361.0% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS7545 801 379 42252.7% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS4804 679 261 41861.6% MPX-AS Microplex PTY LTD
AS6517 652 239 41363.3% RELIANCEGLOBALCOM - Reliance
Globalcom Services, Inc
AS7011 974 561 41342.4% FRONTIER-AND-CITIZENS -
Frontier Communications of
BGP Update Report
BGP Update Report Interval: 19-Apr-09 -to- 20-May-09 (32 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS3130 135278 2.3% 526.4 -- RGNET-3130 RGnet/PSGnet 2 - AS638954635 0.9% 12.6 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 3 - AS21491 54546 0.9%1818.2 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa 4 - AS845246129 0.8% 35.6 -- TEDATA TEDATA 5 - AS35805 44098 0.8% 124.6 -- UTG-AS United Telecom AS 6 - AS432343945 0.8% 10.1 -- TWTC - tw telecom holdings, inc. 7 - AS17488 40990 0.7% 25.7 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 8 - AS33776 39232 0.7% 335.3 -- STARCOMMS-ASN 9 - AS815137150 0.6% 25.3 -- Uninet S.A. de C.V. 10 - AS10834 35002 0.6% 13.8 -- Telefonica Data Argentina S.A. 11 - AS17974 32954 0.6% 30.3 -- TELKOMNET-AS2-AP PT Telekomunikasi Indonesia 12 - AS505631911 0.6% 270.4 -- INS-NET-2 - Iowa Network Services 13 - AS20115 30284 0.5% 17.9 -- CHARTER-NET-HKY-NC - Charter Communications 14 - AS22773 30145 0.5% 28.0 -- ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc. 15 - AS424926865 0.5% 148.4 -- LILLY-AS - Eli Lilly and Company 16 - AS292026393 0.5% 321.9 -- LACOE - Los Angeles County Office of Education 17 - AS18566 25689 0.4% 24.1 -- COVAD - Covad Communications Co. 18 - AS15045 25633 0.4%6408.2 -- KITTELSON - KITTELSON AND ASSOCIATES, INC. 19 - AS505025385 0.4%1813.2 -- PSC-EXT - Pittsburgh Supercomputing Center 20 - AS29049 25109 0.4% 77.7 -- DELTA-TELECOM-AS Delta Telecom LTD. TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS15045 25633 0.4%6408.2 -- KITTELSON - KITTELSON AND ASSOCIATES, INC. 2 - AS409674159 0.1%4159.0 -- CSF-AS CSF Computersoftware fuer Fachanwendungen GmbH 3 - AS169318223 0.1%4111.5 -- GLOBAL-PAYMENTS-1 - Global Payments, Inc. 4 - AS32398 21297 0.4%3549.5 -- REALNET-ASN-1 5 - AS13325 24488 0.4%3061.0 -- STOMI - State of Michigan, DMB-CNOC 6 - AS131532546 0.0%2546.0 -- ONEWORLD OneWorld S.A. 7 - AS292292447 0.0%2447.0 -- ASDA-AS Assotiation for the Development of West Athens 8 - AS8499 2221 0.0%2221.0 -- Space Hellas Network Operation Center (NOC) 9 - AS304234086 0.1%2043.0 -- AMEDI-3-ASN1 - Amedisys, Inc. 10 - AS21901 0.0% 4.0 -- NAVITAIRE-AS-AU-AP Accenture - Navitaire, 11 - AS476405605 0.1%1868.3 -- TRICOMPAS Tricomp Sp. z. o. o. 12 - AS21491 54546 0.9%1818.2 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa 13 - AS398033635 0.1%1817.5 -- UTI-AS SC UTI COMMUNICATIONS SYSTEMS SRL 14 - AS505025385 0.4%1813.2 -- PSC-EXT - Pittsburgh Supercomputing Center 15 - AS466534901 0.1%1633.7 -- FREDRIKSON---BYRON - Fredrikson Byron, P.A. 16 - AS46328 10722 0.2%1191.3 -- PTCNEBRASKA - PIERCE TELEPHONE COMPANY, INCORPORATED 17 - AS289532324 0.0%1162.0 -- PIRAEUSBANK Greek banking institution 18 - AS472991084 0.0%1084.0 -- DRSA-AS Dlugie Rozmowy S.A. 19 - AS282561075 0.0%1075.0 -- 20 - AS249942143 0.0%1071.5 -- GENESYS-AS GENESYS Informatica AS for announcing own prefixes TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 72.23.246.0/2424946 0.4% AS5050 -- PSC-EXT - Pittsburgh Supercomputing Center 2 - 41.204.2.0/24 21249 0.3% AS32398 -- REALNET-ASN-1 3 - 192.12.120.0/24 10320 0.2% AS5691 -- MITRE-AS-5 - The MITRE Corporation 4 - 63.103.104.0/228912 0.1% AS15045 -- KITTELSON - KITTELSON AND ASSOCIATES, INC. 5 - 63.103.108.0/238912 0.1% AS15045 -- KITTELSON - KITTELSON AND ASSOCIATES, INC. 6 - 64.69.192.0/20 8217 0.1% AS16931 -- GLOBAL-PAYMENTS-1 - Global Payments, Inc. 7 - 63.103.110.0/247795 0.1% AS15045 -- KITTELSON - KITTELSON AND ASSOCIATES, INC. 8 - 123.49.152.0/247511 0.1% AS18118 -- CITICNET-AP CITIC Networks Management Co.,Ltd. 9 - 123.49.144.0/216866 0.1% AS18118 -- CITICNET-AP CITIC Networks Management Co.,Ltd. 10 - 195.96.69.0/24 6840 0.1% AS8225 -- ASTELIT-MSK-AS Astelit Autonomous System 11 - 90.150.0.0/24 6121 0.1% AS35400 -- MFIST Interregoinal Organization Network Technologies 12 - 193.201.184.0/21 5789 0.1% AS25546 -- BROOKLANDCOMP-AS Brookland Computer Services 13 - 81.199.18.0/24 5628 0.1% AS21491 -- UTL-ON-LINE UTL On-line
The Cidr Report
This report has been generated at Fri May 22 21:21:01 2009 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
15-05-09294616 184074
16-05-09294623 184165
17-05-09294181 184536
18-05-09294340 184423
19-05-09294392 184113
20-05-09294351 184487
21-05-09294523 184151
22-05-09294690 184776
AS Summary
31384 Number of ASes in routing system
13350 Number of ASes announcing only one prefix
4296 Largest number of prefixes announced by an AS
AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc.
89741568 Largest address span announced by an AS (/32s)
AS27064: DNIC-ASBLK-27032-27159 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 22May09 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 295607 184781 11082637.5% All ASes
AS6389 4296 338 395892.1% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4272 1777 249558.4% TWTC - tw telecom holdings,
inc.
AS209 2537 1159 137854.3% ASN-QWEST - Qwest
Communications Corporation
AS4766 1811 520 129171.3% KIXS-AS-KR Korea Telecom
AS17488 1586 302 128481.0% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS4755 1251 149 110288.1% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS22773 1065 84 98192.1% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS1785 1766 835 93152.7% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS8452 1203 307 89674.5% TEDATA TEDATA
AS8151 1445 575 87060.2% Uninet S.A. de C.V.
AS19262 999 238 76176.2% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS18566 1062 424 63860.1% COVAD - Covad Communications
Co.
AS6478 1411 817 59442.1% ATT-INTERNET3 - ATT WorldNet
Services
AS18101 752 171 58177.3% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS11492 1100 551 54949.9% CABLEONE - CABLE ONE, INC.
AS855623 101 52283.8% CANET-ASN-4 - Bell Aliant
Regional Communications, Inc.
AS22047 610 98 51283.9% VTR BANDA ANCHA S.A.
AS577 1226 724 50240.9% BACOM - Bell Canada
AS2706 536 44 49291.8% HKSUPER-HK-AP Pacific Internet
(Hong Kong) Limited
AS17676 565 81 48485.7% GIGAINFRA Softbank BB Corp.
AS7018 1500 1035 46531.0% ATT-INTERNET4 - ATT WorldNet
Services
AS4808 629 169 46073.1% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS24560 692 258 43462.7% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS9443 526 102 42480.6% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS6517 661 241 42063.5% RELIANCEGLOBALCOM - Reliance
Globalcom Services, Inc
AS7011 968 556 41242.6% FRONTIER-AND-CITIZENS -
Frontier Communications of
America, Inc.
AS4668 691 283 40859.0% LGNET-AS-KR LG CNS
AS10620 914 514 40043.8% TV Cable S.A.
AS5668 775 377 39851.4% AS-5668 - CenturyTel Internet
BGP Update Report
BGP Update Report Interval: 13-Apr-09 -to- 14-May-09 (32 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS3130 136562 2.3% 529.3 -- RGNET-3130 RGnet/PSGnet 2 - AS845269624 1.2% 51.7 -- TEDATA TEDATA 3 - AS21491 55630 0.9%1794.5 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa 4 - AS638953858 0.9% 12.4 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 5 - AS35805 52417 0.9% 151.9 -- UTG-AS United Telecom AS 6 - AS432343501 0.7% 10.0 -- TWTC - tw telecom holdings, inc. 7 - AS29049 42441 0.7% 131.4 -- DELTA-TELECOM-AS Delta Telecom LTD. 8 - AS33776 42032 0.7% 359.2 -- STARCOMMS-ASN 9 - AS12978 34819 0.6% 179.5 -- DOGAN-ONLINE Dogan Iletisim Elektronik Servis Hizmetleri AS 10 - AS815134764 0.6% 23.8 -- Uninet S.A. de C.V. 11 - AS10834 34577 0.6% 13.7 -- Telefonica Data Argentina S.A. 12 - AS17488 31858 0.5% 20.0 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 13 - AS17974 31205 0.5% 30.0 -- TELKOMNET-AS2-AP PT Telekomunikasi Indonesia 14 - AS505630480 0.5% 258.3 -- INS-NET-2 - Iowa Network Services 15 - AS22773 28935 0.5% 26.9 -- ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc. 16 - AS15045 28715 0.5%7178.8 -- KITTELSON - KITTELSON AND ASSOCIATES, INC. 17 - AS838627730 0.5% 229.2 -- KOCNET KOCNET-AS 18 - AS20115 27684 0.5% 16.4 -- CHARTER-NET-HKY-NC - Charter Communications 19 - AS424926475 0.5% 146.3 -- LILLY-AS - Eli Lilly and Company 20 - AS292026420 0.5% 322.2 -- LACOE - Los Angeles County Office of Education TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS15045 28715 0.5%7178.8 -- KITTELSON - KITTELSON AND ASSOCIATES, INC. 2 - AS409674218 0.1%4218.0 -- CSF-AS CSF Computersoftware fuer Fachanwendungen GmbH 3 - AS32398 21155 0.4%3525.8 -- REALNET-ASN-1 4 - AS13325 24488 0.4%3061.0 -- STOMI - State of Michigan, DMB-CNOC 5 - AS466538276 0.1%2758.7 -- FREDRIKSON---BYRON - Fredrikson Byron, P.A. 6 - AS282562679 0.1%2679.0 -- 7 - AS131532546 0.0%2546.0 -- ONEWORLD OneWorld S.A. 8 - AS292292449 0.0%2449.0 -- ASDA-AS Assotiation for the Development of West Athens 9 - AS8499 2167 0.0%2167.0 -- Space Hellas Network Operation Center (NOC) 10 - AS304234070 0.1%2035.0 -- AMEDI-3-ASN1 - Amedisys, Inc. 11 - AS476405763 0.1%1921.0 -- TRICOMPAS Tricomp Sp. z. o. o. 12 - AS505025422 0.4%1815.9 -- PSC-EXT - Pittsburgh Supercomputing Center 13 - AS21491 55630 0.9%1794.5 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa 14 - AS46328 14241 0.2%1582.3 -- PTCNEBRASKA - PIERCE TELEPHONE COMPANY, INCORPORATED 15 - AS398032818 0.1%1409.0 -- UTI-AS SC UTI COMMUNICATIONS SYSTEMS SRL 16 - AS289532324 0.0%1162.0 -- PIRAEUSBANK Greek banking institution 17 - AS169313354 0.1%1118.0 -- GLOBAL-PAYMENTS-1 - Global Payments, Inc. 18 - AS249942216 0.0%1108.0 -- GENESYS-AS GENESYS Informatica AS for announcing own prefixes 19 - AS472991077 0.0%1077.0 -- DRSA-AS Dlugie Rozmowy S.A. 20 - AS354005382 0.1%1076.4 -- MFIST Interregoinal Organization Network Technologies TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 72.23.246.0/2424993 0.4% AS5050 -- PSC-EXT - Pittsburgh Supercomputing Center 2 - 41.204.2.0/24 21102 0.3% AS32398 -- REALNET-ASN-1 3 - 192.12.120.0/24 10327 0.2% AS5691 -- MITRE-AS-5 - The MITRE Corporation 4 - 63.103.104.0/229978 0.2% AS15045 -- KITTELSON - KITTELSON AND ASSOCIATES, INC. 5 - 63.103.108.0/239978 0.2% AS15045 -- KITTELSON - KITTELSON AND ASSOCIATES, INC. 6 - 63.103.110.0/248745 0.1% AS15045 -- KITTELSON - KITTELSON AND ASSOCIATES, INC. 7 - 199.45.13.0/24 8261 0.1% AS46653 -- FREDRIKSON---BYRON - Fredrikson Byron, P.A. 8 - 123.49.152.0/247723 0.1% AS18118 -- CITICNET-AP CITIC Networks Management Co.,Ltd. 9 - 123.49.144.0/216918 0.1% AS18118 -- CITICNET-AP CITIC Networks Management Co.,Ltd. 10 - 195.96.69.0/24 6749 0.1% AS8225 -- ASTELIT-MSK-AS Astelit Autonomous System 11 - 81.199.18.0/24 5772 0.1% AS21491 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa 12 - 193.201.184.0/21 5769 0.1% AS25546 -- BROOKLANDCOMP-AS Brookland Computer Services 13 - 94.124.16.0/21 5697 0.1% AS47640 --
The Cidr Report
This report has been generated at Fri May 15 21:17:19 2009 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
08-05-09294143 182447
09-05-09293901 181869
10-05-09294234 182075
11-05-09294208 183286
12-05-09294500 183655
13-05-09294535 183928
14-05-09294756 183893
15-05-09294616 184092
AS Summary
31334 Number of ASes in routing system
13335 Number of ASes announcing only one prefix
4296 Largest number of prefixes announced by an AS
AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc.
89741824 Largest address span announced by an AS (/32s)
AS27064: DDN-ASNBLK1 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 15May09 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 294546 184073 11047337.5% All ASes
AS6389 4296 339 395792.1% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4270 1765 250558.7% TWTC - tw telecom holdings,
inc.
AS209 2562 1150 141255.1% ASN-QWEST - Qwest
Communications Corporation
AS4766 1805 522 128371.1% KIXS-AS-KR Korea Telecom
AS17488 1584 301 128381.0% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS4755 1247 150 109788.0% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS22773 1063 68 99593.6% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS1785 1759 796 96354.7% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS8452 1200 303 89774.8% TEDATA TEDATA
AS8151 1449 598 85158.7% Uninet S.A. de C.V.
AS19262 996 236 76076.3% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS18566 1062 424 63860.1% COVAD - Covad Communications
Co.
AS6478 1404 811 59342.2% ATT-INTERNET3 - ATT WorldNet
Services
AS18101 754 169 58577.6% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS11492 1099 549 55050.0% CABLEONE - CABLE ONE, INC.
AS855621 101 52083.7% CANET-ASN-4 - Bell Aliant
Regional Communications, Inc.
AS22047 610 98 51283.9% VTR BANDA ANCHA S.A.
AS2706 536 44 49291.8% HKSUPER-HK-AP Pacific Internet
(Hong Kong) Limited
AS17676 565 81 48485.7% GIGAINFRA BB TECHNOLOGY Corp.
AS17908 616 141 47577.1% TCISL Tata Communications
AS4804 574 105 46981.7% MPX-AS Microplex PTY LTD
AS7018 1491 1026 46531.2% ATT-INTERNET4 - ATT WorldNet
Services
AS4808 629 168 46173.3% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS24560 689 249 44063.9% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS7545 787 363 42453.9% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS9443 527 103 42480.5% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS6517 660 242 41863.3% RELIANCEGLOBALCOM - Reliance
Globalcom Services, Inc
AS7011 963 553 41042.6% FRONTIER-AND-CITIZENS -
Frontier Communications of
America, Inc.
AS4668 688 282
The Cidr Report
This report has been generated at Fri May 8 21:15:47 2009 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
01-05-09293917 183484
02-05-09294085 181319
03-05-09293622 180638
04-05-09292601 181458
05-05-09293746 181941
06-05-09293836 182155
07-05-09293603 182383
08-05-09294143 182320
AS Summary
31275 Number of ASes in routing system
13311 Number of ASes announcing only one prefix
4307 Largest number of prefixes announced by an AS
AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc.
89676544 Largest address span announced by an AS (/32s)
AS27064: DDN-ASNBLK1 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 08May09 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 294012 182446 11156637.9% All ASes
AS6389 4307 356 395191.7% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4267 1747 252059.1% TWTC - tw telecom holdings,
inc.
AS209 2564 1147 141755.3% ASN-QWEST - Qwest
Communications Corporation
AS4766 1808 525 128371.0% KIXS-AS-KR Korea Telecom
AS17488 1573 297 127681.1% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS4755 1241 146 109588.2% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS22773 1056 67 98993.7% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS8452 1231 251 98079.6% TEDATA TEDATA
AS1785 1755 802 95354.3% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS8151 1449 556 89361.6% Uninet S.A. de C.V.
AS19262 991 239 75275.9% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS18566 1062 421 64160.4% COVAD - Covad Communications
Co.
AS6478 1398 806 59242.3% ATT-INTERNET3 - ATT WorldNet
Services
AS18101 756 167 58977.9% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS11492 1102 535 56751.5% CABLEONE - CABLE ONE, INC.
AS22047 616 99 51783.9% VTR BANDA ANCHA S.A.
AS855621 110 51182.3% CANET-ASN-4 - Bell Aliant
Regional Communications, Inc.
AS4804 574 66 50888.5% MPX-AS Microplex PTY LTD
AS2706 534 42 49292.1% HKSUPER-HK-AP Pacific Internet
(Hong Kong) Limited
AS17676 565 81 48485.7% GIGAINFRA BB TECHNOLOGY Corp.
AS17908 616 142 47476.9% TCISL Tata Communications
AS10620 924 451 47351.2% TV Cable S.A.
AS4808 627 166 46173.5% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS24560 684 234 45065.8% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS7018 1463 1015 44830.6% ATT-INTERNET4 - ATT WorldNet
Services
AS7545 806 366 44054.6% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS9443 527 98 42981.4% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS6517 660 241 41963.5% RELIANCEGLOBALCOM - Reliance
Globalcom Services, Inc
AS7011 960 552 40842.5% FRONTIER-AND-CITIZENS -
Frontier Communications of
BGP Update Report
BGP Update Report Interval: 06-Apr-09 -to- 07-May-09 (32 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS6389 392748 4.1% 90.1 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 2 - AS3130 137093 1.4% 531.4 -- RGNET-3130 RGnet/PSGnet 3 - AS2386 116477 1.2% 89.6 -- INS-AS - ATT Data Communications Services 4 - AS8452 112790 1.2% 81.0 -- TEDATA TEDATA 5 - AS647886719 0.9% 61.4 -- ATT-INTERNET3 - ATT WorldNet Services 6 - AS17488 80855 0.8% 51.0 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 7 - AS11492 75669 0.8% 61.4 -- CABLEONE - CABLE ONE, INC. 8 - AS701866390 0.7% 43.7 -- ATT-INTERNET4 - ATT WorldNet Services 9 - AS432363847 0.7% 14.8 -- TWTC - tw telecom holdings, inc. 10 - AS19262 59691 0.6% 60.1 -- VZGNI-TRANSIT - Verizon Internet Services Inc. 11 - AS29049 57957 0.6% 179.4 -- DELTA-TELECOM-AS Delta Telecom LTD. 12 - AS982955044 0.6% 84.4 -- BSNL-NIB National Internet Backbone 13 - AS35805 54897 0.6% 162.4 -- UTG-AS United Telecom AS 14 - AS21491 54046 0.6%1743.4 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa 15 - AS20115 53058 0.6% 31.2 -- CHARTER-NET-HKY-NC - Charter Communications 16 - AS10796 52523 0.5% 101.6 -- SCRR-10796 - Road Runner HoldCo LLC 17 - AS475548911 0.5% 39.0 -- TATACOMM-AS TATA Communications formerly VSNL is Leading ISP 18 - AS815145529 0.5% 31.2 -- Uninet S.A. de C.V. 19 - AS12978 37903 0.4% 210.6 -- DOGAN-ONLINE Dogan Iletisim Elektronik Servis Hizmetleri AS 20 - AS33776 36400 0.4% 311.1 -- STARCOMMS-ASN TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS15045 28705 0.3%9568.3 -- KITTELSON - KITTELSON AND ASSOCIATES, INC. 2 - AS409674229 0.0%4229.0 -- CSF-AS CSF Computersoftware fuer Fachanwendungen GmbH 3 - AS46653 12377 0.1%4125.7 -- FREDRIKSON---BYRON - Fredrikson Byron, P.A. 4 - AS32398 20650 0.2%3441.7 -- REALNET-ASN-1 5 - AS131532544 0.0%2544.0 -- ONEWORLD OneWorld S.A. 6 - AS292292444 0.0%2444.0 -- ASDA-AS Assotiation for the Development of West Athens 7 - AS13325 18957 0.2%2369.6 -- STOMI - State of Michigan, DMB-CNOC 8 - AS8499 2171 0.0%2171.0 -- Space Hellas Network Operation Center (NOC) 9 - AS304234073 0.0%2036.5 -- AMEDI-3-ASN1 - Amedisys, Inc. 10 - AS282561952 0.0%1952.0 -- 11 - AS476405811 0.1%1937.0 -- TRICOMPAS Tricomp Sp. z. o. o. 12 - AS505025297 0.3%1806.9 -- PSC-EXT - Pittsburgh Supercomputing Center 13 - AS21491 54046 0.6%1743.4 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa 14 - AS46328 15393 0.2%1710.3 -- PTCNEBRASKA - PIERCE TELEPHONE COMPANY, INCORPORATED 15 - AS289532325 0.0%1162.5 -- PIRAEUSBANK Greek banking institution 16 - AS142232323 0.0%1161.5 -- NYSDOH - New York State Department of Health 17 - AS488811082 0.0%1082.0 -- DATA-NODE-AS SC Data Node SRL 18 - AS472991080 0.0%1080.0 -- DRSA-AS Dlugie Rozmowy S.A. 19 - AS343212081 0.0%1040.5 -- LDK-AS Institute of strategic marks, Kiev, Ukraine 20 - AS193982040 0.0%1020.0 -- INDENET - Indenet.net TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 72.23.246.0/2424848 0.2% AS5050 -- PSC-EXT - Pittsburgh Supercomputing Center 2 - 41.204.2.0/24 20294 0.2% AS32398 -- REALNET-ASN-1 3 - 199.45.13.0/2412357 0.1% AS46653 -- FREDRIKSON---BYRON - Fredrikson Byron, P.A. 4 - 192.12.120.0/24 10388 0.1% AS5691 -- MITRE-AS-5 - The MITRE Corporation 5 - 63.103.104.0/229975 0.1% AS15045 -- KITTELSON - KITTELSON AND ASSOCIATES, INC. 6 - 63.103.108.0/239975 0.1% AS15045 -- KITTELSON - KITTELSON AND ASSOCIATES, INC. 7 - 63.103.110.0/248755 0.1% AS15045 -- KITTELSON - KITTELSON AND ASSOCIATES, INC. 8 - 123.49.152.0/247059 0.1% AS18118 -- CITICNET-AP CITIC Networks Management Co.,Ltd. 9 - 195.96.69.0/24 6592 0.1% AS8225 -- ASTELIT-MSK-AS Astelit Autonomous System 11 - 123.49.144.0/216305 0.1% AS18118 -- CITICNET-AP CITIC Networks Management Co.,Ltd. 12 - 94.124.16.0/21 5723 0.1% AS47640 -- TRICOMPAS Tricomp Sp. z. o. o. 13 - 193.201.184.0/21 5630 0.1% AS25546 -- BROOKLANDCOMP-AS Brookland Computer Services 14 - 81.199.18.0/24 5588 0.1% AS21491 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda -
The Cidr Report
This report has been generated at Fri May 1 21:14:35 2009 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
24-04-09293508 183193
25-04-09293368 183008
26-04-09293365 183060
27-04-09293353 183017
28-04-09293240 182847
29-04-09293688 183208
30-04-09293994 183201
01-05-09293917 183533
AS Summary
31223 Number of ASes in routing system
13291 Number of ASes announcing only one prefix
4312 Largest number of prefixes announced by an AS
AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc.
89676288 Largest address span announced by an AS (/32s)
AS27064: DDN-ASNBLK1 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 01May09 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 293920 183310 11061037.6% All ASes
AS6389 4312 358 395491.7% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4265 1743 252259.1% TWTC - tw telecom holdings,
inc.
AS209 2631 1159 147255.9% ASN-QWEST - Qwest
Communications Corporation
AS4766 1804 522 128271.1% KIXS-AS-KR Korea Telecom
AS17488 1555 297 125880.9% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS4755 1239 146 109388.2% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS22773 1049 67 98293.6% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS8452 1235 323 91273.8% TEDATA TEDATA
AS8151 1446 580 86659.9% Uninet S.A. de C.V.
AS1785 1752 891 86149.1% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS19262 990 239 75175.9% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS18566 1062 421 64160.4% COVAD - Covad Communications
Co.
AS18101 753 161 59278.6% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS6478 1390 803 58742.2% ATT-INTERNET3 - ATT WorldNet
Services
AS11492 1096 538 55850.9% CABLEONE - CABLE ONE, INC.
AS17908 615 76 53987.6% TCISL Tata Communications
AS855620 97 52384.4% CANET-ASN-4 - Bell Aliant
Regional Communications, Inc.
AS22047 617 99 51884.0% VTR BANDA ANCHA S.A.
AS4804 574 66 50888.5% MPX-AS Microplex PTY LTD
AS2706 543 41 50292.4% HKSUPER-HK-AP Pacific Internet
(Hong Kong) Limited
AS4808 615 163 45273.5% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS7018 1468 1017 45130.7% ATT-INTERNET4 - ATT WorldNet
Services
AS24560 684 246 43864.0% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS9443 525 95 43081.9% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS10620 905 478 42747.2% TV Cable S.A.
AS17676 565 140 42575.2% GIGAINFRA BB TECHNOLOGY Corp.
AS6517 655 237 41863.8% RELIANCEGLOBALCOM - Reliance
Globalcom Services, Inc
AS4134 898 485 41346.0% CHINANET-BACKBONE
No.31,Jin-rong Street
AS7545 806 396 41050.9% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS7011 958 551 40742.5%
BGP Update Report
BGP Update Report Interval: 30-Mar-09 -to- 30-Apr-09 (32 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS6389 371436 4.1% 85.1 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 2 - AS3130 123394 1.4% 478.3 -- RGNET-3130 RGnet/PSGnet 3 - AS2386 111342 1.2% 85.3 -- INS-AS - ATT Data Communications Services 4 - AS845297850 1.1% 69.2 -- TEDATA TEDATA 5 - AS647883258 0.9% 59.5 -- ATT-INTERNET3 - ATT WorldNet Services 6 - AS17488 8 0.9% 49.9 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 7 - AS11492 69963 0.8% 56.7 -- CABLEONE - CABLE ONE, INC. 8 - AS29049 67638 0.8% 208.1 -- DELTA-TELECOM-AS Delta Telecom LTD. 9 - AS432362131 0.7% 14.4 -- TWTC - tw telecom holdings, inc. 10 - AS701860224 0.7% 39.5 -- ATT-INTERNET4 - ATT WorldNet Services 11 - AS19262 58605 0.7% 59.1 -- VZGNI-TRANSIT - Verizon Internet Services Inc. 12 - AS35805 54928 0.6% 167.5 -- UTG-AS United Telecom AS 13 - AS20115 49616 0.6% 29.5 -- CHARTER-NET-HKY-NC - Charter Communications 14 - AS982949466 0.6% 76.6 -- BSNL-NIB National Internet Backbone 15 - AS10796 49370 0.6% 85.0 -- SCRR-10796 - Road Runner HoldCo LLC 16 - AS475548369 0.5% 38.6 -- TATACOMM-AS TATA Communications formerly VSNL is Leading ISP 17 - AS815144307 0.5% 30.3 -- Uninet S.A. de C.V. 18 - AS21491 42886 0.5%1383.4 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa 19 - AS949837662 0.4% 50.4 -- BBIL-AP BHARTI Airtel Ltd. 20 - AS12978 37120 0.4% 206.2 -- DOGAN-ONLINE Dogan Iletisim Elektronik Servis Hizmetleri AS TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS15045 18729 0.2%6243.0 -- KITTELSON - KITTELSON AND ASSOCIATES, INC. 2 - AS46653 15874 0.2%5291.3 -- FREDRIKSON---BYRON - Fredrikson Byron, P.A. 3 - AS409674236 0.1%4236.0 -- CSF-AS CSF Computersoftware fuer Fachanwendungen GmbH 4 - AS32398 19356 0.2%3226.0 -- REALNET-ASN-1 5 - AS7717 2763 0.0%2763.0 -- OPENIXP-AS-ID-AP OpenIXP ASN 6 - AS142235285 0.1%2642.5 -- NYSDOH - New York State Department of Health 7 - AS304234076 0.1%2038.0 -- AMEDI-3-ASN1 - Amedisys, Inc. 8 - AS46328 18132 0.2%2014.7 -- PTCNEBRASKA - PIERCE TELEPHONE COMPANY, INCORPORATED 9 - AS476405467 0.1%1822.3 -- TRICOMPAS Tricomp Sp. z. o. o. 10 - AS505024977 0.3%1665.1 -- PSC-EXT - Pittsburgh Supercomputing Center 11 - AS13325 11776 0.1%1472.0 -- STOMI - State of Michigan, DMB-CNOC 12 - AS21491 42886 0.5%1383.4 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa 13 - AS9796 3831 0.0%1277.0 -- WIPRO Internet Service Providers 14 - AS343212274 0.0%1137.0 -- LDK-AS Institute of strategic marks, Kiev, Ukraine 15 - AS193982003 0.0%1001.5 -- INDENET - Indenet.net 16 - AS179758139 0.1% 904.3 -- APT-AP AS# for peering purpose with IX and ISP. 17 - AS569110515 0.1% 808.8 -- MITRE-AS-5 - The MITRE Corporation 18 - AS34996 791 0.0% 791.0 -- ANADOLUSIGORTA-AS Anadolu Sigorta AS 19 - AS41492 787 0.0% 787.0 -- EXIMBANK-AS SC Eximbank SA 20 - AS254121520 0.0% 760.0 -- CCRTV-AS CCRTV AS Barcelona Spain TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 72.23.246.0/2424846 0.3% AS5050 -- PSC-EXT - Pittsburgh Supercomputing Center 2 - 41.204.2.0/24 19003 0.2% AS32398 -- REALNET-ASN-1 3 - 199.45.13.0/2415854 0.2% AS46653 -- FREDRIKSON---BYRON - Fredrikson Byron, P.A. 4 - 192.12.120.0/24 10327 0.1% AS5691 -- MITRE-AS-5 - The MITRE Corporation 6 - 192.35.129.0/247976 0.1% AS6629 -- NOAA-AS - NOAA 7 - 198.77.177.0/247907 0.1% AS6629 -- NOAA-AS - NOAA 8 - 192.102.88.0/247894 0.1% AS6629 -- NOAA-AS - NOAA 9 - 63.103.104.0/226486 0.1% AS15045 -- KITTELSON - KITTELSON AND ASSOCIATES, INC. 10 - 63.103.108.0/236486 0.1% AS15045 -- KITTELSON - KITTELSON AND ASSOCIATES, INC. 11 - 195.96.69.0/24 6143 0.1% AS8225 -- ASTELIT-MSK-AS Astelit Autonomous System 12 - 63.103.110.0/245757 0.1% AS15045 -- KITTELSON - KITTELSON AND ASSOCIATES, INC. 13 - 193.201.184.0/21 5649 0.1% AS25546 -- BROOKLANDCOMP-AS Brookland Computer Services 14 - 94.124.16.0/21 5424 0.1% AS47640 -- TRICOMPAS Tricomp Sp. z. o. o. 15 - 123.49.152.0/245358 0.1% AS18118 -- CITICNET-AP CITIC Networks
BGP Update Report
BGP Update Report Interval: 23-Mar-09 -to- 23-Apr-09 (32 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS6389 347165 4.2% 79.4 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 2 - AS238697456 1.2% 75.6 -- INS-AS - ATT Data Communications Services 3 - AS845288023 1.1% 61.4 -- TEDATA TEDATA 4 - AS647874893 0.9% 54.0 -- ATT-INTERNET3 - ATT WorldNet Services 5 - AS29049 72202 0.9% 222.8 -- DELTA-TELECOM-AS Delta Telecom LTD. 6 - AS17488 71849 0.9% 46.1 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 7 - AS11492 60689 0.7% 49.4 -- CABLEONE - CABLE ONE, INC. 8 - AS701853533 0.7% 35.3 -- ATT-INTERNET4 - ATT WorldNet Services 9 - AS12978 53255 0.7% 294.2 -- DOGAN-ONLINE Dogan Iletisim Elektronik Servis Hizmetleri AS 10 - AS19262 51431 0.6% 52.2 -- VZGNI-TRANSIT - Verizon Internet Services Inc. 11 - AS313051157 0.6% 198.3 -- RGNET-3130 RGnet/PSGnet 12 - AS432351029 0.6% 11.8 -- TWTC - tw telecom holdings, inc. 13 - AS10796 48612 0.6% 83.7 -- SCRR-10796 - Road Runner HoldCo LLC 14 - AS982946946 0.6% 71.2 -- BSNL-NIB National Internet Backbone 15 - AS35805 46767 0.6% 144.8 -- UTG-AS United Telecom AS 16 - AS475546138 0.6% 37.0 -- TATACOMM-AS TATA Communications formerly VSNL is Leading ISP 17 - AS20115 42268 0.5% 25.3 -- CHARTER-NET-HKY-NC - Charter Communications 18 - AS815141307 0.5% 27.6 -- Uninet S.A. de C.V. 19 - AS949841056 0.5% 55.1 -- BBIL-AP BHARTI Airtel Ltd. 20 - AS764334446 0.4% 31.2 -- VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS7717 7985 0.1%7985.0 -- OPENIXP-AS-ID-AP OpenIXP ASN 2 - AS46653 17208 0.2%5736.0 -- FREDRIKSON---BYRON - Fredrikson Byron, P.A. 3 - AS15045 11268 0.1%3756.0 -- KITTELSON - KITTELSON AND ASSOCIATES, INC. 4 - AS142236661 0.1%3330.5 -- NYSDOH - New York State Department of Health 5 - AS32398 18185 0.2%3030.8 -- REALNET-ASN-1 6 - AS304234072 0.1%2036.0 -- AMEDI-3-ASN1 - Amedisys, Inc. 7 - AS46328 16488 0.2%1832.0 -- PTCNEBRASKA - PIERCE TELEPHONE COMPANY, INCORPORATED 8 - AS505024819 0.3%1772.8 -- PSC-EXT - Pittsburgh Supercomputing Center 9 - AS476405116 0.1%1705.3 -- TRICOMPAS Tricomp Sp. z. o. o. 10 - AS409671521 0.0%1521.0 -- CSF-AS CSF Computersoftware fuer Fachanwendungen GmbH 11 - AS9796 3838 0.1%1279.3 -- WIPRO Internet Service Providers 12 - AS282561275 0.0%1275.0 -- 13 - AS343212295 0.0%1147.5 -- LDK-AS Institute of strategic marks, Kiev, Ukraine 14 - AS21491 32496 0.4%1048.3 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa 15 - AS190171016 0.0%1016.0 -- QUALCOMM-QWBS-LV - Qualcomm, Inc. 16 - AS193981941 0.0% 970.5 -- INDENET - Indenet.net 17 - AS40344 946 0.0% 946.0 -- PROSK-1 - Pro Sky Wireless 18 - AS34996 874 0.0% 874.0 -- ANADOLUSIGORTA-AS Anadolu Sigorta AS 19 - AS17975 10440 0.1% 870.0 -- APT-AP AS# for peering purpose with IX and ISP. 20 - AS569110633 0.1% 817.9 -- MITRE-AS-5 - The MITRE Corporation TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 72.23.246.0/2424718 0.3% AS5050 -- PSC-EXT - Pittsburgh Supercomputing Center 2 - 41.204.2.0/24 17903 0.2% AS32398 -- REALNET-ASN-1 3 - 199.45.13.0/2417186 0.2% AS46653 -- FREDRIKSON---BYRON - Fredrikson Byron, P.A. 4 - 192.35.129.0/24 10828 0.1% AS6629 -- NOAA-AS - NOAA 5 - 222.255.51.64/26 10760 0.1% AS7643 -- VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) 6 - 198.77.177.0/24 10723 0.1% AS6629 -- NOAA-AS - NOAA 7 - 192.102.88.0/24 10685 0.1% AS6629 -- NOAA-AS - NOAA 8 - 192.12.120.0/24 10508 0.1% AS5691 -- MITRE-AS-5 - The MITRE Corporation 9 - 121.101.184.0/24 8030 0.1% AS38785 -- BAGUSNET-AS-ID PT. BORNEO BROADBAND TECHNOLOGY AS7717 -- OPENIXP-AS-ID-AP OpenIXP ASN 10 - 192.135.176.0/24 6651 0.1% AS14223 -- NYSDOH - New York State Department of Health 11 - 202.92.235.0/246465 0.1% AS9498 -- BBIL-AP BHARTI Airtel Ltd. 12 - 195.96.69.0/24 6005 0.1% AS8225 -- ASTELIT-MSK-AS Astelit Autonomous System 13 - 193.201.184.0/21 5640 0.1% AS25546 -- BROOKLANDCOMP-AS Brookland Computer Services 14 - 94.124.16.0/21 5033
The Cidr Report
This report has been generated at Fri Apr 24 21:13:59 2009 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
17-04-09292288 183122
18-04-09292580 182677
19-04-09292736 182860
20-04-09292576 183243
21-04-09292958 182956
22-04-09292769 182911
23-04-09292923 183618
24-04-09293508 183392
AS Summary
31191 Number of ASes in routing system
13247 Number of ASes announcing only one prefix
4313 Largest number of prefixes announced by an AS
AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc.
89678848 Largest address span announced by an AS (/32s)
AS27064: DDN-ASNBLK1 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 24Apr09 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 293332 183149 11018337.6% All ASes
AS6389 4313 361 395291.6% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4272 1717 255559.8% TWTC - tw telecom holdings,
inc.
AS209 2649 1161 148856.2% ASN-QWEST - Qwest
Communications Corporation
AS4766 1802 520 128271.1% KIXS-AS-KR Korea Telecom
AS17488 1553 301 125280.6% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS22773 1049 66 98393.7% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS4755 1229 274 95577.7% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS8452 1248 326 92273.9% TEDATA TEDATA
AS8151 1450 580 87060.0% Uninet S.A. de C.V.
AS1785 1753 911 84248.0% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS19262 982 238 74475.8% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS18566 1059 419 64060.4% COVAD - Covad Communications
Co.
AS18101 756 150 60680.2% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS6478 1368 785 58342.6% ATT-INTERNET3 - ATT WorldNet
Services
AS11492 1163 607 55647.8% CABLEONE - CABLE ONE, INC.
AS855627 97 53084.5% CANET-ASN-4 - Bell Aliant
Regional Communications, Inc.
AS22047 615 111 50482.0% VTR BANDA ANCHA S.A.
AS2706 543 41 50292.4% HKSUPER-HK-AP Pacific Internet
(Hong Kong) Limited
AS17908 611 115 49681.2% TCISL Tata Communications
AS7545 808 321 48760.3% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS4134 896 413 48353.9% CHINANET-BACKBONE
No.31,Jin-rong Street
AS7018 1479 1016 46331.3% ATT-INTERNET4 - ATT WorldNet
Services
AS4808 615 164 45173.3% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS4804 497 64 43387.1% MPX-AS Microplex PTY LTD
AS24560 682 251 43163.2% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS17676 562 138 42475.4% GIGAINFRA BB TECHNOLOGY Corp.
AS6517 678 267 41160.6% RELIANCEGLOBALCOM - Reliance
Globalcom Services, Inc
AS7011 958 551 40742.5% FRONTIER-AND-CITIZENS -
Frontier Communications of
America, Inc.
AS4668 688 282 406
BGP Update Report
BGP Update Report Interval: 16-Mar-09 -to- 16-Apr-09 (32 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS6389 336400 4.2% 77.1 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 2 - AS238693991 1.2% 72.4 -- INS-AS - ATT Data Communications Services 3 - AS845287338 1.1% 61.2 -- TEDATA TEDATA 4 - AS647874423 0.9% 54.9 -- ATT-INTERNET3 - ATT WorldNet Services 5 - AS29049 61885 0.8% 191.0 -- DELTA-TELECOM-AS Delta Telecom LTD. 6 - AS11492 59264 0.7% 48.5 -- CABLEONE - CABLE ONE, INC. 7 - AS12978 54276 0.7% 299.9 -- DOGAN-ONLINE Dogan Iletisim Elektronik Servis Hizmetleri AS 8 - AS10796 52716 0.7% 54.0 -- SCRR-10796 - Road Runner HoldCo LLC 9 - AS701851476 0.6% 34.1 -- ATT-INTERNET4 - ATT WorldNet Services 10 - AS19262 50870 0.6% 51.8 -- VZGNI-TRANSIT - Verizon Internet Services Inc. 11 - AS949849199 0.6% 69.5 -- BBIL-AP BHARTI Airtel Ltd. 12 - AS982948838 0.6% 74.3 -- BSNL-NIB National Internet Backbone 13 - AS17488 47441 0.6% 30.5 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 14 - AS35805 44809 0.6% 138.7 -- UTG-AS United Telecom AS 15 - AS662939731 0.5% 611.2 -- NOAA-AS - NOAA 16 - AS20115 37139 0.5% 22.0 -- CHARTER-NET-HKY-NC - Charter Communications 17 - AS432334658 0.4% 8.0 -- TWTC - tw telecom holdings, inc. 18 - AS645833219 0.4% 83.7 -- Telgua 19 - AS701 31261 0.4% 36.2 -- UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 20 - AS754531200 0.4% 37.8 -- TPG-INTERNET-AP TPG Internet Pty Ltd TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS771713041 0.2% 13041.0 -- OPENIXP-AS-ID-AP OpenIXP ASN 2 - AS46653 17118 0.2%5706.0 -- FREDRIKSON---BYRON - Fredrikson Byron, P.A. 3 - AS142236661 0.1%3330.5 -- NYSDOH - New York State Department of Health 4 - AS190172284 0.0%2284.0 -- QUALCOMM-QWBS-LV - Qualcomm, Inc. 5 - AS32398 16537 0.2%2067.1 -- REALNET-ASN-1 6 - AS46328 17359 0.2%1928.8 -- PTCNEBRASKA - PIERCE TELEPHONE COMPANY, INCORPORATED 7 - AS505024762 0.3%1904.8 -- PSC-EXT - Pittsburgh Supercomputing Center 8 - AS403441403 0.0%1403.0 -- PROSK-1 - Pro Sky Wireless 9 - AS422916892 0.1%1378.4 -- ISTRANET-AS Istranet LLC 10 - AS9796 3846 0.1%1282.0 -- WIPRO Internet Service Providers 11 - AS476403751 0.1%1250.3 -- TRICOMPAS Tricomp Sp. z. o. o. 12 - AS343212339 0.0%1169.5 -- LDK-AS Institute of strategic marks, Kiev, Ukraine 13 - AS150453175 0.0%1058.3 -- KITTELSON - KITTELSON AND ASSOCIATES, INC. 14 - AS209253140 0.0%1046.7 -- RESEAU-DANZAS DANZAS Autonomous System 15 - AS193981903 0.0% 951.5 -- INDENET - Indenet.net 16 - AS13683 870 0.0% 870.0 -- AUTO-WARES-ASN - Auto-Wares Inc 17 - AS34996 864 0.0% 864.0 -- ANADOLUSIGORTA-AS Anadolu Sigorta AS 18 - AS45417 857 0.0% 857.0 -- CFLINDIA-NET-IN 1-2-10, S P ROAD 19 - AS569110548 0.1% 811.4 -- MITRE-AS-5 - The MITRE Corporation 20 - AS17975 11140 0.1% 795.7 -- APT-AP AS# for peering purpose with IX and ISP. TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 72.23.246.0/2424649 0.3% AS5050 -- PSC-EXT - Pittsburgh Supercomputing Center 2 - 199.45.13.0/2417096 0.2% AS46653 -- FREDRIKSON---BYRON - Fredrikson Byron, P.A. 3 - 41.204.2.0/24 16348 0.2% AS32398 -- REALNET-ASN-1 4 - 192.35.129.0/24 13238 0.2% AS6629 -- NOAA-AS - NOAA 5 - 198.77.177.0/24 13096 0.1% AS6629 -- NOAA-AS - NOAA 6 - 121.101.184.0/24 13069 0.1% AS38785 -- BAGUSNET-AS-ID PT. BORNEO BROADBAND TECHNOLOGY AS7717 -- OPENIXP-AS-ID-AP OpenIXP ASN 7 - 192.102.88.0/24 13056 0.1% AS6629 -- NOAA-AS - NOAA 8 - 222.255.51.64/26 10659 0.1% AS7643 -- VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) 9 - 192.12.120.0/24 10423 0.1% AS5691 -- MITRE-AS-5 - The MITRE Corporation 10 - 202.92.235.0/247623 0.1% AS9498 -- BBIL-AP BHARTI Airtel Ltd. 11 - 192.135.176.0/24 6651 0.1% AS14223 -- NYSDOH - New York State Department of Health 12 - 195.96.69.0/24 5816 0.1% AS8225 -- ASTELIT-MSK-AS Astelit Autonomous System 13 - 202.154.60.0/225797 0.1% AS4434 -- ERX-RADNET1-AS PT Rahajasa Media Internet 14 - 193.201.184.0/21 5599 0.1% AS25546 -- BROOKLANDCOMP-AS Brookland Computer
BGP Update Report
BGP Update Report Interval: 09-Mar-09 -to- 09-Apr-09 (32 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS6389 331960 4.2% 75.6 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 2 - AS238690353 1.1% 69.7 -- INS-AS - ATT Data Communications Services 3 - AS647873160 0.9% 54.5 -- ATT-INTERNET3 - ATT WorldNet Services 4 - AS949859078 0.8% 83.8 -- BBIL-AP BHARTI Airtel Ltd. 5 - AS845258903 0.7% 44.2 -- TEDATA TEDATA 6 - AS11492 56546 0.7% 46.5 -- CABLEONE - CABLE ONE, INC. 7 - AS10796 52245 0.7% 53.5 -- SCRR-10796 - Road Runner HoldCo LLC 8 - AS19262 50741 0.6% 51.8 -- VZGNI-TRANSIT - Verizon Internet Services Inc. 9 - AS29049 50095 0.6% 151.8 -- DELTA-TELECOM-AS Delta Telecom LTD. 10 - AS701848986 0.6% 33.2 -- ATT-INTERNET4 - ATT WorldNet Services 11 - AS982942463 0.5% 64.9 -- BSNL-NIB National Internet Backbone 12 - AS662942017 0.5% 646.4 -- NOAA-AS - NOAA 13 - AS958339186 0.5% 34.6 -- SIFY-AS-IN Sify Limited 14 - AS17488 38583 0.5% 24.8 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 15 - AS754536340 0.5% 44.1 -- TPG-INTERNET-AP TPG Internet Pty Ltd 16 - AS35805 35581 0.5% 111.5 -- UTG-AS United Telecom AS 17 - AS432334580 0.4% 8.0 -- TWTC - tw telecom holdings, inc. 18 - AS20115 34481 0.4% 21.0 -- CHARTER-NET-HKY-NC - Charter Communications 19 - AS645832735 0.4% 82.5 -- Telgua 20 - AS443431405 0.4% 805.3 -- ERX-RADNET1-AS PT Rahajasa Media Internet TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS46653 16762 0.2%5587.3 -- FREDRIKSON---BYRON - Fredrikson Byron, P.A. 2 - AS190173599 0.1%3599.0 -- QUALCOMM-QWBS-LV - Qualcomm, Inc. 3 - AS771717553 0.2%3510.6 -- OPENIXP-AS-ID-AP OpenIXP ASN 4 - AS6312 3286 0.0%3286.0 -- WESTWORLD-AS - WestWorld Media, LLC 5 - AS142236091 0.1%3045.5 -- NYSDOH - New York State Department of Health 6 - AS46328 20074 0.2%2230.4 -- PTCNEBRASKA - PIERCE TELEPHONE COMPANY, INCORPORATED 7 - AS32398 16047 0.2%2005.9 -- REALNET-ASN-1 8 - AS505024671 0.3%1897.8 -- PSC-EXT - Pittsburgh Supercomputing Center 9 - AS422916868 0.1%1717.0 -- ISTRANET-AS Istranet LLC 10 - AS305205761 0.1%1440.2 -- NUANCE-SOMERVILLE - NUANCE COMMUNICATIONS, INC 11 - AS403441400 0.0%1400.0 -- PROSK-1 - Pro Sky Wireless 12 - AS209254062 0.1%1354.0 -- RESEAU-DANZAS DANZAS Autonomous System 13 - AS13683 854 0.0% 854.0 -- AUTO-WARES-ASN - Auto-Wares Inc 14 - AS303063335 0.0% 833.8 -- AfOL-Sz-AS 15 - AS45417 821 0.0% 821.0 -- CFLINDIA-NET-IN 1-2-10, S P ROAD 16 - AS569110547 0.1% 811.3 -- MITRE-AS-5 - The MITRE Corporation 17 - AS443431405 0.4% 805.3 -- ERX-RADNET1-AS PT Rahajasa Media Internet 18 - AS476402327 0.0% 775.7 -- TRICOMPAS Tricomp Sp. z. o. o. 19 - AS5839 7266 0.1% 726.6 -- DDN-ASNBLK - DoD Network Information Center 20 - AS262763584 0.1% 716.8 -- TIMKEN-USA - The Timken Company TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 72.23.246.0/2424558 0.3% AS5050 -- PSC-EXT - Pittsburgh Supercomputing Center 2 - 121.101.184.0/24 17553 0.2% AS38785 -- BAGUSNET-AS-ID PT. BORNEO BROADBAND TECHNOLOGY AS7717 -- OPENIXP-AS-ID-AP OpenIXP ASN 3 - 199.45.13.0/2416742 0.2% AS46653 -- FREDRIKSON---BYRON - Fredrikson Byron, P.A. 4 - 41.204.2.0/24 15863 0.2% AS32398 -- REALNET-ASN-1 5 - 192.35.129.0/24 13961 0.2% AS6629 -- NOAA-AS - NOAA 6 - 198.77.177.0/24 13869 0.2% AS6629 -- NOAA-AS - NOAA 7 - 192.102.88.0/24 13850 0.2% AS6629 -- NOAA-AS - NOAA 8 - 222.255.51.64/26 10738 0.1% AS7643 -- VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) 9 - 192.12.120.0/24 10428 0.1% AS5691 -- MITRE-AS-5 - The MITRE Corporation 10 - 202.92.235.0/248314 0.1% AS9498 -- BBIL-AP BHARTI Airtel Ltd. 11 - 202.154.57.0/246642 0.1% AS4434 -- ERX-RADNET1-AS PT Rahajasa Media Internet 12 - 202.154.60.0/226493 0.1% AS4434 -- ERX-RADNET1-AS PT Rahajasa Media Internet 13 - 192.135.176.0/24 6081 0.1% AS14223 -- NYSDOH - New York State Department of Health 14 - 205.104.240.0/20 5572 0.1% AS5839 -- DDN-ASNBLK - DoD Network Information Center 15 - 202.154.60.0/245543 0.1% AS4434 -- ERX-RADNET1-AS PT Rahajasa
The Cidr Report
This report has been generated at Fri Apr 10 21:13:42 2009 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
03-04-09291003 181969
04-04-09291185 181943
05-04-09291168 182047
06-04-09291172 182195
07-04-09291218 182276
08-04-09291339 182214
09-04-09291312 181932
10-04-09291172 182240
AS Summary
31092 Number of ASes in routing system
13200 Number of ASes announcing only one prefix
4304 Largest number of prefixes announced by an AS
AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc.
89679104 Largest address span announced by an AS (/32s)
AS27064: DDN-ASNBLK1 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 10Apr09 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 291607 182306 10930137.5% All ASes
AS6389 4304 359 394591.7% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4253 1679 257460.5% TWTC - tw telecom holdings,
inc.
AS209 2645 1160 148556.1% ASN-QWEST - Qwest
Communications Corporation
AS4766 1797 512 128571.5% KIXS-AS-KR Korea Telecom
AS17488 1537 322 121579.1% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS22773 1022 65 95793.6% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS4755 1180 279 90176.4% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS8151 1442 589 85359.2% Uninet S.A. de C.V.
AS8452 1193 354 83970.3% TEDATA TEDATA
AS1785 1745 925 82047.0% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS19262 974 244 73074.9% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS6478 1317 725 59245.0% ATT-INTERNET3 - ATT WorldNet
Services
AS855646 71 57589.0% CANET-ASN-4 - Bell Aliant
AS11492 1210 648 56246.4% CABLEONE - CABLE ONE, INC.
AS18101 756 215 54171.6% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS3356 1193 662 53144.5% LEVEL3 Level 3 Communications
AS2706 543 32 51194.1% HKSUPER-HK-AP Pacific Internet
(Hong Kong) Limited
AS17908 606 118 48880.5% TCISL Tata Communications
AS22047 604 116 48880.8% VTR BANDA ANCHA S.A.
AS6517 744 259 48565.2% RELIANCEGLOBALCOM - Reliance
Globalcom Services, Inc
AS7545 805 330 47559.0% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS4808 619 164 45573.5% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS24560 681 247 43463.7% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS4804 494 64 43087.0% MPX-AS Microplex PTY LTD
AS7018 1446 1020 42629.5% ATT-INTERNET4 - ATT WorldNet
Services
AS17676 561 137 42475.6% GIGAINFRA BB TECHNOLOGY Corp.
AS18566 1060 638 42239.8% COVAD - Covad Communications
Co.
AS4668 697 284 41359.3% LGNET-AS-KR LG CNS
AS7011 956 550 40642.5% FRONTIER-AND-CITIZENS -
Frontier Communications of
America, Inc.
AS16814 589 187 40268.3% NSS S.A.
Total 37619129552466465.6% Top 30
BGP Update Report
BGP Update Report Interval: 02-Mar-09 -to- 02-Apr-09 (32 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS9583 104066 2.4% 96.4 -- SIFY-AS-IN Sify Limited 2 - AS662943772 1.0%7295.3 -- NOAA-AS - NOAA 3 - AS313039483 0.9% 303.7 -- RGNET-3130 RGnet/PSGnet 4 - AS949837206 0.9% 54.0 -- BBIL-AP BHARTI Airtel Ltd. 5 - AS477131946 0.7% 121.5 -- NZTELECOM Netgate 6 - AS443431818 0.7% 815.8 -- ERX-RADNET1-AS PT Rahajasa Media Internet 7 - AS645830254 0.7% 75.3 -- Telgua 8 - AS12978 28541 0.7% 158.6 -- DOGAN-ONLINE Dogan Iletisim Elektronik Servis Hizmetleri AS 9 - AS505628078 0.7% 242.1 -- INS-NET-2 - Iowa Network Services 10 - AS29372 27064 0.6% 304.1 -- SFR-NETWORK SFR 11 - AS505024782 0.6%2478.2 -- PSC-EXT - Pittsburgh Supercomputing Center 12 - AS23966 23980 0.6% 59.8 -- LDN-AS-AP LINKdotNET Telecom Limited 13 - AS35805 23477 0.5% 73.4 -- UTG-AS United Telecom AS 14 - AS764322746 0.5% 20.1 -- VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) 15 - AS464822663 0.5% 111.1 -- NZIX-2 Netgate 16 - AS17557 22333 0.5% 66.1 -- PKTELECOM-AS-AP Pakistan Telecom 17 - AS17488 21298 0.5% 14.4 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 18 - AS29049 19471 0.5% 59.0 -- DELTA-TELECOM-AS Delta Telecom LTD. 19 - AS17974 19153 0.4% 30.9 -- TELKOMNET-AS2-AP PT Telekomunikasi Indonesia 20 - AS754519000 0.4% 23.2 -- TPG-INTERNET-AP TPG Internet Pty Ltd TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS662943772 1.0%7295.3 -- NOAA-AS - NOAA 2 - AS190175078 0.1%5078.0 -- QUALCOMM-QWBS-LV - Qualcomm, Inc. 3 - AS8225 4678 0.1%4678.0 -- ASTELIT-MSK-AS Astelit Autonomous System 4 - AS46653 13420 0.3%4473.3 -- FREDRIKSON---BYRON - Fredrikson Byron, P.A. 5 - AS281944227 0.1%4227.0 -- 6 - AS771717693 0.4%3538.6 -- OPENIXP-AS-ID-AP OpenIXP ASN 7 - AS6312 3283 0.1%3283.0 -- WESTWORLD-AS - WestWorld Media, LLC 8 - AS413435906 0.1%2953.0 -- TRIUNFOTEL-ASN TRIUNFOTEL 9 - AS569110368 0.2%2592.0 -- MITRE-AS-5 - The MITRE Corporation 10 - AS30306 10145 0.2%2536.2 -- AfOL-Sz-AS 11 - AS505024782 0.6%2478.2 -- PSC-EXT - Pittsburgh Supercomputing Center 12 - AS8755 2065 0.1%2065.0 -- CITYLINESPB-AS CityLine-SPb Autonomous System 13 - AS305521981 0.1%1981.0 -- SAINT-JOSEPHS-HOSPITAL-OF-ATLANTA - Saint Joseph's Hospital of Atlanta 14 - AS32398 14773 0.3%1846.6 -- REALNET-ASN-1 15 - AS422916832 0.2%1708.0 -- ISTRANET-AS Istranet LLC 16 - AS46328 15184 0.3%1687.1 -- PTCNEBRASKA - PIERCE TELEPHONE COMPANY, INCORPORATED 17 - AS142233081 0.1%1540.5 -- NYSDOH - New York State Department of Health 18 - AS209254468 0.1%1489.3 -- RESEAU-DANZAS DANZAS Autonomous System 19 - AS305205756 0.1%1439.0 -- NUANCE-SOMERVILLE - NUANCE COMMUNICATIONS, INC 20 - AS403441379 0.0%1379.0 -- PROSK-1 - Pro Sky Wireless TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 72.23.246.0/2424682 0.5% AS5050 -- PSC-EXT - Pittsburgh Supercomputing Center 2 - 121.101.184.0/24 17606 0.4% AS38785 -- BAGUSNET-AS-ID PT. BORNEO BROADBAND TECHNOLOGY AS7717 -- OPENIXP-AS-ID-AP OpenIXP ASN 3 - 192.35.129.0/24 14652 0.3% AS6629 -- NOAA-AS - NOAA 4 - 41.204.2.0/24 14602 0.3% AS32398 -- REALNET-ASN-1 5 - 192.102.88.0/24 14558 0.3% AS6629 -- NOAA-AS - NOAA 6 - 198.77.177.0/24 14550 0.3% AS6629 -- NOAA-AS - NOAA 7 - 199.45.13.0/2413396 0.3% AS46653 -- FREDRIKSON---BYRON - Fredrikson Byron, P.A. 8 - 222.255.51.64/26 10746 0.2% AS7643 -- VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) 9 - 192.12.120.0/24 10352 0.2% AS5691 -- MITRE-AS-5 - The MITRE Corporation 10 - 210.214.222.0/24 8555 0.2% AS9583 -- SIFY-AS-IN Sify Limited 11 - 221.135.105.0/24 8528 0.2% AS9583 -- SIFY-AS-IN Sify Limited 12 - 210.214.232.0/24 8505 0.2% AS9583 -- SIFY-AS-IN Sify Limited 13 - 210.214.156.0/24 8473 0.2% AS9583 -- SIFY-AS-IN Sify Limited 14 - 210.214.177.0/24 8427 0.2% AS9583 -- SIFY-AS-IN Sify Limited 15 - 210.214.184.0/24 8377 0.2% AS9583 -- SIFY-AS-IN Sify Limited 16 - 210.214.132.0/24 8357 0.2% AS9583 -- SIFY-AS-IN Sify Limited 17 - 210.214.146.0/24 8332 0.2% AS9583
The Cidr Report
This report has been generated at Fri Apr 3 21:13:56 2009 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
28-03-09290916 181486
29-03-09291158 181718
29-03-09291185 181603
30-03-0929 181799
31-03-09291239 181735
01-04-09291373 181653
02-04-09291095 181869
03-04-09291003 181954
AS Summary
31017 Number of ASes in routing system
13146 Number of ASes announcing only one prefix
4312 Largest number of prefixes announced by an AS
AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc.
89615616 Largest address span announced by an AS (/32s)
AS27064: DDN-ASNBLK1 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 03Apr09 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 291170 181941 10922937.5% All ASes
AS6389 4312 361 395191.6% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4254 1681 257360.5% TWTC - tw telecom holdings,
inc.
AS209 2658 1159 149956.4% ASN-QWEST - Qwest
Communications Corporation
AS4766 1793 511 128271.5% KIXS-AS-KR Korea Telecom
AS17488 1538 353 118577.0% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS22773 1020 65 95593.6% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS8452 1232 292 94076.3% TEDATA TEDATA
AS4755 1179 278 90176.4% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS8151 1445 563 88261.0% Uninet S.A. de C.V.
AS1785 1742 927 81546.8% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS19262 971 242 72975.1% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS7545 806 205 60174.6% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS6478 1310 729 58144.4% ATT-INTERNET3 - ATT WorldNet
Services
AS855643 78 56587.9% CANET-ASN-4 - Bell Aliant
AS11492 1202 642 56046.6% CABLEONE - CABLE ONE, INC.
AS18101 754 216 53871.4% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS3356 1193 660 53344.7% LEVEL3 Level 3 Communications
AS2706 544 26 51895.2% HKSUPER-HK-AP Pacific Internet
(Hong Kong) Limited
AS6517 747 256 49165.7% RELIANCEGLOBALCOM - Reliance
Globalcom Services, Inc
AS22047 607 119 48880.4% VTR BANDA ANCHA S.A.
AS4808 618 164 45473.5% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS17908 603 150 45375.1% TCISL Tata Communications
AS16814 594 143 45175.9% NSS S.A.
AS4804 494 64 43087.0% MPX-AS Microplex PTY LTD
AS24560 680 251 42963.1% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS9443 523 95 42881.8% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS7018 1442 1016 42629.5% ATT-INTERNET4 - ATT WorldNet
Services
AS17676 561 137 42475.6% GIGAINFRA BB TECHNOLOGY Corp.
AS4668 694 283 41159.2% LGNET-AS-KR LG CNS
AS7011 959 553 40642.3% FRONTIER-AND-CITIZENS -
Frontier Communications of
America, Inc.
Total 371181221924899
BGP Update Report
BGP Update Report Interval: 23-Feb-09 -to- 26-Mar-09 (32 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS9583 178710 4.2% 168.3 -- SIFY-AS-IN Sify Limited 2 - AS313075459 1.8% 580.5 -- RGNET-3130 RGnet/PSGnet 3 - AS662945245 1.1%7540.8 -- NOAA-AS - NOAA 4 - AS35805 34923 0.8% 109.8 -- UTG-AS United Telecom AS 5 - AS949833067 0.8% 47.5 -- BBIL-AP BHARTI Airtel Ltd. 6 - AS477131425 0.7% 119.9 -- NZTELECOM Netgate 7 - AS505628898 0.7% 249.1 -- INS-NET-2 - Iowa Network Services 8 - AS29372 28893 0.7% 324.6 -- SFR-NETWORK SFR 9 - AS645828167 0.7% 86.9 -- Telgua 10 - AS12978 28084 0.7% 156.9 -- DOGAN-ONLINE Dogan Iletisim Elektronik Servis Hizmetleri AS 11 - AS17488 26032 0.6% 16.6 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 12 - AS505024618 0.6%2461.8 -- PSC-EXT - Pittsburgh Supercomputing Center 13 - AS443423460 0.6% 601.5 -- ERX-RADNET1-AS PT Rahajasa Media Internet 14 - AS764322445 0.5% 19.7 -- VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) 15 - AS464822396 0.5% 110.3 -- NZIX-2 Netgate 16 - AS479520117 0.5% 61.9 -- INDOSATM2-ID INDOSATM2 ASN 17 - AS982919858 0.5% 30.9 -- BSNL-NIB National Internet Backbone 18 - AS17974 18503 0.4% 31.5 -- TELKOMNET-AS2-AP PT Telekomunikasi Indonesia 19 - AS810317873 0.4% 29.9 -- STATE-OF-FLA - Florida Department of Management Services - Technology Program 20 - AS10620 17537 0.4% 22.1 -- TV Cable S.A. TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS569110406 0.2% 10406.0 -- MITRE-AS-5 - The MITRE Corporation 2 - AS662945245 1.1%7540.8 -- NOAA-AS - NOAA 3 - AS190175658 0.1%5658.0 -- QUALCOMM-QWBS-LV - Qualcomm, Inc. 4 - AS30306 17285 0.4%4321.2 -- AfOL-Sz-AS 5 - AS8225 4183 0.1%4183.0 -- ASTELIT-MSK-AS Astelit Autonomous System 6 - AS46653 10128 0.2%3376.0 -- FREDRIKSON---BYRON - Fredrikson Byron, P.A. 7 - AS6312 3284 0.1%3284.0 -- WESTWORLD-AS - WestWorld Media, LLC 8 - AS413435906 0.1%2953.0 -- TRIUNFOTEL-ASN TRIUNFOTEL 9 - AS505024618 0.6%2461.8 -- PSC-EXT - Pittsburgh Supercomputing Center 10 - AS8755 2068 0.1%2068.0 -- CITYLINESPB-AS CityLine-SPb Autonomous System 11 - AS281944074 0.1%2037.0 -- 12 - AS305521970 0.1%1970.0 -- SAINT-JOSEPHS-HOSPITAL-OF-ATLANTA - Saint Joseph's Hospital of Atlanta 13 - AS32398 13839 0.3%1729.9 -- REALNET-ASN-1 14 - AS46328 14725 0.3%1636.1 -- PTCNEBRASKA - PIERCE TELEPHONE COMPANY, INCORPORATED 15 - AS771712904 0.3%1613.0 -- OPENIXP-AS-ID-AP OpenIXP ASN 16 - AS209254456 0.1%1485.3 -- RESEAU-DANZAS DANZAS Autonomous System 17 - AS305205756 0.1%1439.0 -- NUANCE-SOMERVILLE - NUANCE COMMUNICATIONS, INC 18 - AS353351430 0.0%1430.0 -- ESSTU-AS East-Siberian State Technological University AS 19 - AS403441379 0.0%1379.0 -- PROSK-1 - Pro Sky Wireless 20 - AS422914884 0.1%1221.0 -- ISTRANET-AS Istranet LLC TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 72.23.246.0/2424527 0.5% AS5050 -- PSC-EXT - Pittsburgh Supercomputing Center 2 - 192.35.129.0/24 15183 0.3% AS6629 -- NOAA-AS - NOAA 3 - 192.102.88.0/24 15043 0.3% AS6629 -- NOAA-AS - NOAA 4 - 198.77.177.0/24 15007 0.3% AS6629 -- NOAA-AS - NOAA 5 - 221.135.105.0/24 14858 0.3% AS9583 -- SIFY-AS-IN Sify Limited 6 - 210.214.222.0/24 14823 0.3% AS9583 -- SIFY-AS-IN Sify Limited 7 - 210.214.232.0/24 14774 0.3% AS9583 -- SIFY-AS-IN Sify Limited 8 - 210.214.177.0/24 14743 0.3% AS9583 -- SIFY-AS-IN Sify Limited 9 - 210.214.132.0/24 14723 0.3% AS9583 -- SIFY-AS-IN Sify Limited 10 - 210.214.184.0/24 14714 0.3% AS9583 -- SIFY-AS-IN Sify Limited 11 - 210.214.156.0/24 14705 0.3% AS9583 -- SIFY-AS-IN Sify Limited 12 - 210.214.146.0/24 14539 0.3% AS9583 -- SIFY-AS-IN Sify Limited 13 - 210.214.117.0/24 14435 0.3% AS9583 -- SIFY-AS-IN Sify Limited 14 - 210.210.127.0/24 14386 0.3% AS9583 -- SIFY-AS-IN Sify Limited 15 - 41.204.2.0/24 13641 0.3% AS32398 -- REALNET-ASN-1 16 - 221.134.32.0/24 12908 0.3% AS9583 -- SIFY-AS-IN Sify Limited 17 - 121.101.184.0/24 12755 0.3% AS38785 -- BAGUSNET-AS-ID PT. BORNEO BROADBAND TECHNOLOGY AS7717 -- OPENIXP-AS-ID-AP OpenIXP ASN 18 -
The Cidr Report
This report has been generated at Fri Mar 27 21:14:03 2009 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
20-03-09290412 181310
21-03-09290541 181280
22-03-09290520 181269
23-03-09290491 181327
24-03-09290531 181343
25-03-09290656 181601
26-03-09290800 181539
27-03-09290729 181710
AS Summary
30998 Number of ASes in routing system
13159 Number of ASes announcing only one prefix
4322 Largest number of prefixes announced by an AS
AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc.
89615616 Largest address span announced by an AS (/32s)
AS27064: DDN-ASNBLK1 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 27Mar09 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 290864 181668 10919637.5% All ASes
AS6389 4322 343 397992.1% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4248 1677 257160.5% TWTC - tw telecom holdings,
inc.
AS209 2655 1156 149956.5% ASN-QWEST - Qwest
Communications Corporation
AS4766 1822 529 129371.0% KIXS-AS-KR Korea Telecom
AS17488 1532 349 118377.2% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS22773 1038 66 97293.6% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS8452 1247 298 94976.1% TEDATA TEDATA
AS1785 1737 797 94054.1% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS4755 1177 271 90677.0% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS8151 1438 572 86660.2% Uninet S.A. de C.V.
AS19262 969 250 71974.2% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS7545 800 203 59774.6% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS11492 1193 636 55746.7% CABLEONE - CABLE ONE, INC.
AS6478 1295 742 55342.7% ATT-INTERNET3 - ATT WorldNet
Services
AS3356 1198 650 54845.7% LEVEL3 Level 3 Communications
AS18101 760 222 53870.8% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS2706 544 26 51895.2% HKSUPER-HK-AP Pacific Internet
(Hong Kong) Limited
AS6517 745 231 51469.0% RELIANCEGLOBALCOM - Reliance
Globalcom Services, Inc
AS22047 607 119 48880.4% VTR BANDA ANCHA S.A.
AS4808 616 160 45674.0% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS17908 603 148 45575.5% TCISL Tata Communications
AS4804 494 64 43087.0% MPX-AS Microplex PTY LTD
AS9443 523 95 42881.8% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS24560 678 250 42863.1% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS7018 1449 1022 42729.5% ATT-INTERNET4 - ATT WorldNet
Services
AS17676 547 131 41676.1% GIGAINFRA BB TECHNOLOGY Corp.
AS7011 962 550 41242.8% FRONTIER-AND-CITIZENS -
Frontier Communications of
America, Inc.
AS4668 693 285 40858.9% LGNET-AS-KR LG CNS
AS5668 775 383 39250.6% AS-5668 - CenturyTel Internet
Holdings, Inc.
AS6471 442 62
The Cidr Report
This report has been generated at Fri Mar 20 21:14:04 2009 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
13-03-09289939 180761
14-03-09289873 180675
15-03-09289989 180688
16-03-09289977 180873
17-03-09289990 180964
18-03-09290318 180827
19-03-09290375 181084
20-03-09290412 181230
AS Summary
30948 Number of ASes in routing system
13129 Number of ASes announcing only one prefix
4324 Largest number of prefixes announced by an AS
AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc.
89742336 Largest address span announced by an AS (/32s)
AS27064: DDN-ASNBLK1 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 20Mar09 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 290499 181251 10924837.6% All ASes
AS6389 4324 343 398192.1% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4244 1839 240556.7% TWTC - tw telecom holdings,
inc.
AS209 2916 1281 163556.1% ASN-QWEST - Qwest
Communications Corporation
AS4766 1818 527 129171.0% KIXS-AS-KR Korea Telecom
AS17488 1530 330 120078.4% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS22773 1038 66 97293.6% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS4755 1218 263 95578.4% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS8452 1250 335 91573.2% TEDATA TEDATA
AS8151 1445 558 88761.4% Uninet S.A. de C.V.
AS1785 1732 888 84448.7% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS19262 969 250 71974.2% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS11492 1194 525 66956.0% CABLEONE - CABLE ONE, INC.
AS7545 785 199 58674.6% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS6478 1295 736 55943.2% ATT-INTERNET3 - ATT WorldNet
Services
AS18101 755 201 55473.4% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS3356 1175 646 52945.0% LEVEL3 Level 3 Communications
AS2706 544 26 51895.2% HKSUPER-HK-AP Pacific Internet
(Hong Kong) Limited
AS22047 606 120 48680.2% VTR BANDA ANCHA S.A.
AS17908 601 125 47679.2% TCISL Tata Communications
AS4808 612 158 45474.2% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS7018 1451 1017 43429.9% ATT-INTERNET4 - ATT WorldNet
Services
AS24560 678 250 42863.1% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS9443 510 91 41982.2% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS4804 476 63 41386.8% MPX-AS Microplex PTY LTD
AS17676 530 119 41177.5% GIGAINFRA BB TECHNOLOGY Corp.
AS4668 691 284 40758.9% LGNET-AS-KR LG CNS
AS4134 933 529 40443.3% CHINANET-BACKBONE
No.31,Jin-rong Street
AS7011 953 553 40042.0% FRONTIER-AND-CITIZENS -
Frontier Communications of
America, Inc.
AS10620 845 460 38545.6% TV Cable S.A.
AS6471 441 62 37985.9% ENTEL CHILE S.A.
Total 37559128442471565.8% Top 30
BGP Update Report
BGP Update Report Interval: 16-Feb-09 -to- 19-Mar-09 (32 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS9583 253960 5.8% 239.4 -- SIFY-AS-IN Sify Limited 2 - AS313089734 2.1% 690.3 -- RGNET-3130 RGnet/PSGnet 3 - AS662947663 1.1%6809.0 -- NOAA-AS - NOAA 4 - AS17974 38119 0.9% 73.4 -- TELKOMNET-AS2-AP PT Telekomunikasi Indonesia 5 - AS35805 35885 0.8% 119.6 -- UTG-AS United Telecom AS 6 - AS505631399 0.7% 273.0 -- INS-NET-2 - Iowa Network Services 7 - AS477129929 0.7% 114.2 -- NZTELECOM Netgate 8 - AS645828813 0.7% 86.5 -- Telgua 9 - AS949828440 0.7% 40.7 -- BBIL-AP BHARTI Airtel Ltd. 10 - AS29372 27845 0.6% 312.9 -- SFR-NETWORK SFR 11 - AS17488 25506 0.6% 15.5 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 12 - AS505024268 0.6%2426.8 -- PSC-EXT - Pittsburgh Supercomputing Center 13 - AS982924134 0.6% 38.3 -- BSNL-NIB National Internet Backbone 14 - AS30306 23561 0.5%5890.2 -- AfOL-Sz-AS 15 - AS764322355 0.5% 19.6 -- VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) 16 - AS464821617 0.5% 106.0 -- NZIX-2 Netgate 17 - AS479519482 0.5% 59.9 -- INDOSATM2-ID INDOSATM2 ASN 18 - AS810319256 0.4% 32.1 -- STATE-OF-FLA - Florida Department of Management Services - Technology Program 19 - AS424918550 0.4% 106.0 -- LILLY-AS - Eli Lilly and Company 20 - AS10620 17379 0.4% 20.3 -- TV Cable S.A. TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS569110287 0.2% 10287.0 -- MITRE-AS-5 - The MITRE Corporation 2 - AS662947663 1.1%6809.0 -- NOAA-AS - NOAA 3 - AS30306 23561 0.5%5890.2 -- AfOL-Sz-AS 4 - AS190175796 0.1%5796.0 -- QUALCOMM-QWBS-LV - Qualcomm, Inc. 5 - AS6312 3279 0.1%3279.0 -- WESTWORLD-AS - WestWorld Media, LLC 6 - AS8225 3108 0.1%3108.0 -- ASTELIT-MSK-AS Astelit Autonomous System 7 - AS413435906 0.1%2953.0 -- TRIUNFOTEL-ASN TRIUNFOTEL 8 - AS505024268 0.6%2426.8 -- PSC-EXT - Pittsburgh Supercomputing Center 9 - AS281944620 0.1%2310.0 -- 10 - AS466536467 0.1%2155.7 -- FREDRIKSON---BYRON - Fredrikson Byron, P.A. 11 - AS125006320 0.1%2106.7 -- RCS-AS RCS Autonomus System 12 - AS8755 2068 0.1%2068.0 -- CITYLINESPB-AS CityLine-SPb Autonomous System 13 - AS481442006 0.1%2006.0 -- NETWORKTECH Network Technology 14 - AS305521966 0.1%1966.0 -- SAINT-JOSEPHS-HOSPITAL-OF-ATLANTA - Saint Joseph's Hospital of Atlanta 15 - AS3944 1944 0.0%1944.0 -- PARTAN-LAB - Partan Partan 16 - AS32398 12766 0.3%1595.8 -- REALNET-ASN-1 17 - AS46328 14167 0.3%1574.1 -- PTCNEBRASKA - PIERCE TELEPHONE COMPANY, INCORPORATED 18 - AS353351527 0.0%1527.0 -- ESSTU-AS East-Siberian State Technological University AS 19 - AS302871492 0.0%1492.0 -- ALON-USA - ALON USA, LP 20 - AS305205756 0.1%1439.0 -- NUANCE-SOMERVILLE - NUANCE COMMUNICATIONS, INC TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 72.23.246.0/2424166 0.5% AS5050 -- PSC-EXT - Pittsburgh Supercomputing Center 2 - 221.134.32.0/24 22424 0.5% AS9583 -- SIFY-AS-IN Sify Limited 3 - 221.135.105.0/24 21045 0.4% AS9583 -- SIFY-AS-IN Sify Limited 4 - 210.214.177.0/24 20999 0.4% AS9583 -- SIFY-AS-IN Sify Limited 5 - 210.214.232.0/24 20910 0.4% AS9583 -- SIFY-AS-IN Sify Limited 6 - 210.214.184.0/24 20833 0.4% AS9583 -- SIFY-AS-IN Sify Limited 7 - 210.214.156.0/24 20830 0.4% AS9583 -- SIFY-AS-IN Sify Limited 8 - 210.214.132.0/24 20826 0.4% AS9583 -- SIFY-AS-IN Sify Limited 9 - 210.214.222.0/24 20744 0.4% AS9583 -- SIFY-AS-IN Sify Limited 10 - 210.214.146.0/24 20619 0.4% AS9583 -- SIFY-AS-IN Sify Limited 11 - 210.214.117.0/24 20472 0.4% AS9583 -- SIFY-AS-IN Sify Limited 12 - 210.210.127.0/24 20403 0.4% AS9583 -- SIFY-AS-IN Sify Limited 13 - 192.35.129.0/24 15986 0.3% AS6629 -- NOAA-AS - NOAA 14 - 192.102.88.0/24 15872 0.3% AS6629 -- NOAA-AS - NOAA 15 - 198.77.177.0/24 15790 0.3% AS6629 -- NOAA-AS - NOAA 16 - 41.204.2.0/24 12442 0.3% AS32398 -- REALNET-ASN-1 17 - 212.85.223.0/24 11395 0.2% AS30306 -- AfOL-Sz-AS 18 - 212.85.220.0/24 11387 0.2% AS19711 -- SWAZI-NET AS30306 -- AfOL-Sz-AS 20 - 205.104.240.0/20 10674 0.2% AS5237 -- DODNIC - DoD Network Information
BGP Update Report
BGP Update Report Interval: 09-Feb-09 -to- 12-Mar-09 (32 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS9583 340993 7.2% 296.8 -- SIFY-AS-IN Sify Limited 2 - AS313089740 1.9% 690.3 -- RGNET-3130 RGnet/PSGnet 3 - AS662948665 1.0% 748.7 -- NOAA-AS - NOAA 4 - AS35805 42241 0.9% 139.0 -- UTG-AS United Telecom AS 5 - AS764338671 0.8% 34.9 -- VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) 6 - AS30890 35698 0.8% 79.9 -- EVOLVA Evolva Telecom 7 - AS17974 35138 0.7% 69.4 -- TELKOMNET-AS2-AP PT Telekomunikasi Indonesia 8 - AS505633187 0.7% 286.1 -- INS-NET-2 - Iowa Network Services 9 - AS645830871 0.7% 85.5 -- Telgua 10 - AS30306 29280 0.6%7320.0 -- AfOL-Sz-AS 11 - AS17488 27622 0.6% 16.8 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 12 - AS477127137 0.6% 102.0 -- NZTELECOM Netgate 13 - AS29372 25369 0.5% 281.9 -- SFR-NETWORK SFR 14 - AS505024198 0.5%1728.4 -- PSC-EXT - Pittsburgh Supercomputing Center 15 - AS27757 23122 0.5% 189.5 -- ANDINATEL S.A. 16 - AS982922760 0.5% 35.6 -- BSNL-NIB National Internet Backbone 17 - AS464822122 0.5% 107.9 -- NZIX-2 Netgate 18 - AS810319727 0.4% 32.8 -- STATE-OF-FLA - Florida Department of Management Services - Technology Program 19 - AS30969 19371 0.4%2421.4 -- TAN-NET TransAfrica Networks 20 - AS20115 19086 0.4% 11.6 -- CHARTER-NET-HKY-NC - Charter Communications TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS30306 29280 0.6%7320.0 -- AfOL-Sz-AS 2 - AS190175390 0.1%5390.0 -- QUALCOMM-QWBS-LV - Qualcomm, Inc. 3 - AS302874700 0.1%4700.0 -- ALON-USA - ALON USA, LP 4 - AS12500 12162 0.3%4054.0 -- RCS-AS RCS Autonomus System 5 - AS413435895 0.1%2947.5 -- TRIUNFOTEL-ASN TRIUNFOTEL 6 - AS281945460 0.1%2730.0 -- 7 - AS30969 19371 0.4%2421.4 -- TAN-NET TransAfrica Networks 8 - AS8755 2070 0.0%2070.0 -- CITYLINESPB-AS CityLine-SPb Autonomous System 9 - AS481441882 0.0%1882.0 -- NETWORKTECH Network Technology 10 - AS505024198 0.5%1728.4 -- PSC-EXT - Pittsburgh Supercomputing Center 11 - AS353351627 0.0%1627.0 -- ESSTU-AS East-Siberian State Technological University AS 12 - AS354109009 0.2%1501.5 -- RU-LVS-AS LVS AS Number 13 - AS32398 11438 0.2%1429.8 -- REALNET-ASN-1 14 - AS46328 10964 0.2%1218.2 -- PTCNEBRASKA - PIERCE TELEPHONE COMPANY, INCORPORATED 15 - AS391072249 0.1%1124.5 -- INTERLAN-AS Asociatia Interlan 16 - AS413821038 0.0%1038.0 -- TELEPORT-AS Teleport LLC Network AS 17 - AS46781 916 0.0% 916.0 -- ASN1 - White Nile Group, Inc. 18 - AS19634 896 0.0% 896.0 -- HGL-22-ASN - Heidenreich GP, LLC 19 - AS466532601 0.1% 867.0 -- FREDRIKSON---BYRON - Fredrikson Byron, P.A. 20 - AS292241676 0.0% 838.0 -- HELLMANN Hellmann Worldwide Logistics GmbH Co KG TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 221.134.32.0/24 32037 0.6% AS9583 -- SIFY-AS-IN Sify Limited 2 - 210.214.177.0/24 27706 0.5% AS9583 -- SIFY-AS-IN Sify Limited 3 - 221.135.105.0/24 27697 0.5% AS9583 -- SIFY-AS-IN Sify Limited 4 - 210.214.184.0/24 27562 0.5% AS9583 -- SIFY-AS-IN Sify Limited 5 - 210.214.232.0/24 27525 0.5% AS9583 -- SIFY-AS-IN Sify Limited 6 - 210.214.132.0/24 27428 0.5% AS9583 -- SIFY-AS-IN Sify Limited 7 - 210.214.156.0/24 27408 0.5% AS9583 -- SIFY-AS-IN Sify Limited 8 - 210.214.222.0/24 27343 0.5% AS9583 -- SIFY-AS-IN Sify Limited 9 - 210.214.146.0/24 27261 0.5% AS9583 -- SIFY-AS-IN Sify Limited 10 - 210.214.117.0/24 26981 0.5% AS9583 -- SIFY-AS-IN Sify Limited 11 - 210.210.127.0/24 26875 0.5% AS9583 -- SIFY-AS-IN Sify Limited 12 - 72.23.246.0/2424056 0.5% AS5050 -- PSC-EXT - Pittsburgh Supercomputing Center 13 - 192.35.129.0/24 16266 0.3% AS6629 -- NOAA-AS - NOAA 14 - 192.102.88.0/24 16109 0.3% AS6629 -- NOAA-AS - NOAA 15 - 198.77.177.0/24 16028 0.3% AS6629 -- NOAA-AS - NOAA 16 - 212.85.223.0/24 14248 0.3% AS30306 -- AfOL-Sz-AS 17 - 212.85.220.0/24 14236 0.3% AS19711 -- SWAZI-NET AS30306 -- AfOL-Sz-AS 18 - 190.152.100.0/24 12940 0.2% AS27757 -- ANDINATEL S.A. 19 - 41.204.2.0/24 11173 0.2% AS32398 -- REALNET-ASN-1 20 - 222.255.51.64/26 11063 0.2% AS7643 --
BGP Update Report
BGP Update Report Interval: 26-Jan-09 -to- 26-Feb-09 (32 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS9583 304975 6.6% 237.3 -- SIFY-AS-IN Sify Limited 2 - AS7643 131673 2.9% 209.3 -- VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) 3 - AS30890 50431 1.1% 113.1 -- EVOLVA Evolva Telecom 4 - AS662949010 1.1% 754.0 -- NOAA-AS - NOAA 5 - AS17974 34251 0.7% 67.3 -- TELKOMNET-AS2-AP PT Telekomunikasi Indonesia 6 - AS35805 33756 0.7% 90.0 -- UTG-AS United Telecom AS 7 - AS27757 33625 0.7% 275.6 -- ANDINATEL S.A. 8 - AS313033494 0.7% 257.6 -- RGNET-3130 RGnet/PSGnet 9 - AS645830997 0.7% 77.1 -- Telgua 10 - AS30306 29623 0.6%7405.8 -- AfOL-Sz-AS 11 - AS17488 27653 0.6% 16.9 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 12 - AS505626401 0.6% 227.6 -- INS-NET-2 - Iowa Network Services 13 - AS30969 25108 0.5%3138.5 -- TAN-NET TransAfrica Networks 14 - AS505024017 0.5% 407.1 -- PSC-EXT - Pittsburgh Supercomputing Center 15 - AS16559 22988 0.5%2554.2 -- REALCONNECT-01 - RealConnect, Inc 16 - AS845222311 0.5% 15.1 -- TEDATA TEDATA 17 - AS178522016 0.5% 11.6 -- AS-PAETEC-NET - PaeTec Communications, Inc. 18 - AS982921264 0.5% 33.3 -- BSNL-NIB National Internet Backbone 19 - AS23966 19534 0.4% 52.9 -- LDN-AS-AP LINKdotNET Telecom Limited 20 - AS810319354 0.4% 30.3 -- STATE-OF-FLA - Florida Department of Management Services - Technology Program TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS302878019 0.2%8019.0 -- ALON-USA - ALON USA, LP 2 - AS30306 29623 0.6%7405.8 -- AfOL-Sz-AS 3 - AS12500 19258 0.4%4814.5 -- RCS-AS RCS Autonomus System 4 - AS190173584 0.1%3584.0 -- QUALCOMM-QWBS-LV - Qualcomm, Inc. 5 - AS30969 25108 0.5%3138.5 -- TAN-NET TransAfrica Networks 6 - AS413823011 0.1%3011.0 -- TELEPORT-AS Teleport LLC Network AS 7 - AS16559 22988 0.5%2554.2 -- REALCONNECT-01 - RealConnect, Inc 8 - AS281946840 0.1%2280.0 -- 9 - AS32398 2 0.2%1587.4 -- REALNET-ASN-1 10 - AS503313944 0.3%1549.3 -- ISW - Internet Specialties West Inc. 11 - AS259707572 0.2%1262.0 -- IAC - IAC Services LLC 12 - AS463289254 0.2%1028.2 -- PTCNEBRASKA - PIERCE TELEPHONE COMPANY, INCORPORATED 13 - AS239171013 0.0%1013.0 -- BRIBIE-NET-AS-AP Bribie Island Net Multihomed, Brisbane 14 - AS292241964 0.0% 982.0 -- HELLMANN Hellmann Worldwide Logistics GmbH Co KG 15 - AS46781 914 0.0% 914.0 -- ASN1 - White Nile Group, Inc. 16 - AS35335 878 0.0% 878.0 -- ESSTU-AS East-Siberian State Technological University AS 17 - AS391071754 0.0% 877.0 -- INTERLAN-AS Asociatia Interlan 18 - AS48144 867 0.0% 867.0 -- NETWORKTECH Network Technology 19 - AS9796 2550 0.1% 850.0 -- WIPRO Internet Service Providers 20 - AS354105512 0.1% 787.4 -- RU-LVS-AS LVS AS Number TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 221.134.32.0/24 33591 0.7% AS9583 -- SIFY-AS-IN Sify Limited 2 - 72.23.246.0/2423792 0.5% AS5050 -- PSC-EXT - Pittsburgh Supercomputing Center 3 - 210.214.177.0/24 21373 0.4% AS9583 -- SIFY-AS-IN Sify Limited 4 - 210.214.232.0/24 21083 0.4% AS9583 -- SIFY-AS-IN Sify Limited 5 - 210.214.132.0/24 21078 0.4% AS9583 -- SIFY-AS-IN Sify Limited 6 - 210.214.146.0/24 21041 0.4% AS9583 -- SIFY-AS-IN Sify Limited 7 - 210.214.222.0/24 20842 0.4% AS9583 -- SIFY-AS-IN Sify Limited 8 - 210.214.117.0/24 20824 0.4% AS9583 -- SIFY-AS-IN Sify Limited 9 - 210.214.184.0/24 19707 0.4% AS9583 -- SIFY-AS-IN Sify Limited 10 - 210.210.127.0/24 19020 0.4% AS9583 -- SIFY-AS-IN Sify Limited 11 - 221.135.105.0/24 18475 0.4% AS9583 -- SIFY-AS-IN Sify Limited 12 - 210.214.156.0/24 18223 0.3% AS9583 -- SIFY-AS-IN Sify Limited 13 - 190.152.103.0/24 17936 0.3% AS27757 -- ANDINATEL S.A. 14 - 192.35.129.0/24 16419 0.3% AS6629 -- NOAA-AS - NOAA 15 - 192.102.88.0/24 16235 0.3% AS6629 -- NOAA-AS - NOAA 16 - 198.77.177.0/24 16104 0.3% AS6629 -- NOAA-AS - NOAA 17 - 221.135.107.0/24 15320 0.3% AS9583 -- SIFY-AS-IN Sify Limited 18 - 212.85.223.0/24 14721 0.3% AS30306 -- AfOL-Sz-AS 19 - 212.85.220.0/24 14682 0.3% AS30306 -- AfOL-Sz-AS 20 - 190.152.100.0/24 14231 0.3% AS27757 -- ANDINATEL S.A. Details
The Cidr Report
This report has been generated at Fri Feb 27 21:15:46 2009 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
20-02-09287886 179242
21-02-09287773 179438
22-02-09287877 179384
23-02-09287972 179485
24-02-09288091 179449
25-02-09288143 179301
26-02-09288137 179706
27-02-09288243 180010
AS Summary
30771 Number of ASes in routing system
13054 Number of ASes announcing only one prefix
4364 Largest number of prefixes announced by an AS
AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc.
89807872 Largest address span announced by an AS (/32s)
AS27064: DDN-ASNBLK1 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 27Feb09 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 288489 180199 10829037.5% All ASes
AS6389 4364 354 401091.9% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4227 1822 240556.9% TWTC - tw telecom holdings,
inc.
AS209 2834 1252 158255.8% ASN-QWEST - Qwest
Communications Corporation
AS4766 1808 526 128270.9% KIXS-AS-KR Korea Telecom
AS17488 1523 339 118477.7% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS4755 1215 234 98180.7% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS22773 1018 60 95894.1% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS8452 1230 327 90373.4% TEDATA TEDATA
AS8151 1442 580 86259.8% Uninet S.A. de C.V.
AS1785 1752 909 84348.1% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS11492 1199 476 72360.3% CABLEONE - CABLE ONE, INC.
AS19262 956 246 71074.3% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS18101 752 167 58577.8% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS3356 1140 558 58251.1% LEVEL3 Level 3 Communications
AS7545 747 190 55774.6% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS6478 1241 700 54143.6% ATT-INTERNET3 - ATT WorldNet
Services
AS2706 551 45 50691.8% HKSUPER-HK-AP Pacific Internet
(Hong Kong) Limited
AS17908 605 111 49481.7% TCISL Tata Communications
AS22047 606 117 48980.7% VTR BANDA ANCHA S.A.
AS855620 161 45974.0% CANET-ASN-4 - Bell Aliant
AS4808 607 157 45074.1% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS24560 675 240 43564.4% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS7018 1441 1007 43430.1% ATT-INTERNET4 - ATT WorldNet
Services
AS4134 927 505 42245.5% CHINANET-BACKBONE
No.31,Jin-rong Street
AS4668 701 285 41659.3% LGNET-AS-KR LG CNS
AS9443 507 91 41682.1% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS17676 527 117 41077.8% GIGAINFRA BB TECHNOLOGY Corp.
AS7011 956 553 40342.2% FRONTIER-AND-CITIZENS -
Frontier Communications of
America, Inc.
AS6471 438 70 36884.0% ENTEL CHILE S.A.
AS3549 675 312 36353.8% GBLX Global Crossing Ltd.
Total 37284125112477366.4%
BGP Update Report
BGP Update Report Interval: 19-Jan-09 -to- 19-Feb-09 (32 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS9583 252388 5.4% 168.9 -- SIFY-AS-IN Sify Limited 2 - AS7643 167194 3.6% 278.2 -- VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) 3 - AS30890 52239 1.1% 117.4 -- EVOLVA Evolva Telecom 4 - AS662948437 1.0% 745.2 -- NOAA-AS - NOAA 5 - AS35805 35061 0.8% 93.0 -- UTG-AS United Telecom AS 6 - AS17974 33362 0.7% 66.2 -- TELKOMNET-AS2-AP PT Telekomunikasi Indonesia 7 - AS645830697 0.7% 66.0 -- Telgua 8 - AS27757 30429 0.7% 245.4 -- ANDINATEL S.A. 9 - AS30306 28205 0.6%7051.2 -- AfOL-Sz-AS 10 - AS12500 26532 0.6%6633.0 -- RCS-AS RCS Autonomus System 11 - AS505024213 0.5% 410.4 -- PSC-EXT - Pittsburgh Supercomputing Center 12 - AS30969 23596 0.5%2949.5 -- TAN-NET TransAfrica Networks 13 - AS16559 22991 0.5%2554.6 -- REALCONNECT-01 - RealConnect, Inc 14 - AS505621623 0.5% 186.4 -- INS-NET-2 - Iowa Network Services 15 - AS845221514 0.5% 14.6 -- TEDATA TEDATA 16 - AS14420 21438 0.5% 87.9 -- ANDINATEL S.A. 17 - AS20115 21021 0.5% 10.2 -- CHARTER-NET-HKY-NC - Charter Communications 18 - AS17488 20962 0.5% 13.6 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 19 - AS815120618 0.4% 13.8 -- Uninet S.A. de C.V. 20 - AS638920014 0.4% 4.5 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS302879318 0.2%9318.0 -- ALON-USA - ALON USA, LP 2 - AS30306 28205 0.6%7051.2 -- AfOL-Sz-AS 3 - AS12500 26532 0.6%6633.0 -- RCS-AS RCS Autonomus System 4 - AS413823018 0.1%3018.0 -- TELEPORT-AS Teleport LLC Network AS 5 - AS30969 23596 0.5%2949.5 -- TAN-NET TransAfrica Networks 6 - AS190172689 0.1%2689.0 -- QUALCOMM-QWBS-LV - Qualcomm, Inc. 7 - AS16559 22991 0.5%2554.6 -- REALCONNECT-01 - RealConnect, Inc 8 - AS281947260 0.2%2420.0 -- 9 - AS108066265 0.1%2088.3 -- AFP-NET - AGENCE FRANCE PRESSE 10 - AS503314564 0.3%1618.2 -- ISW - Internet Specialties West Inc. 11 - AS239171613 0.0%1613.0 -- BRIBIE-NET-AS-AP Bribie Island Net Multihomed, Brisbane 12 - AS259707560 0.2%1260.0 -- IAC - IAC Services LLC 13 - AS32398 11274 0.2%1252.7 -- REALNET-ASN-1 14 - AS353351167 0.0%1167.0 -- ESSTU-AS East-Siberian State Technological University AS 15 - AS292242154 0.1%1077.0 -- HELLMANN Hellmann Worldwide Logistics GmbH Co KG 16 - AS44265 11231 0.2%1021.0 -- SMOLTELECOM-NET Smoltelecom Ltd AS peering 17 - AS294272025 0.0%1012.5 -- AZM-AS Mercury Telecom 18 - AS416851004 0.0%1004.0 -- DTEK DTEK 19 - AS300951964 0.0% 982.0 -- AS-30095 - Group M Worldwide, Inc. 20 - AS463288611 0.2% 956.8 -- PTCNEBRASKA - PIERCE TELEPHONE COMPANY, INCORPORATED TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 72.23.246.0/2423982 0.5% AS5050 -- PSC-EXT - Pittsburgh Supercomputing Center 2 - 221.134.32.0/24 23761 0.5% AS9583 -- SIFY-AS-IN Sify Limited 3 - 190.152.103.0/24 17617 0.3% AS27757 -- ANDINATEL S.A. 4 - 192.35.129.0/24 16220 0.3% AS6629 -- NOAA-AS - NOAA 5 - 192.102.88.0/24 16080 0.3% AS6629 -- NOAA-AS - NOAA 6 - 198.77.177.0/24 15939 0.3% AS6629 -- NOAA-AS - NOAA 7 - 221.135.107.0/24 15250 0.3% AS9583 -- SIFY-AS-IN Sify Limited 8 - 210.214.177.0/24 15104 0.3% AS9583 -- SIFY-AS-IN Sify Limited 9 - 210.214.146.0/24 14974 0.3% AS9583 -- SIFY-AS-IN Sify Limited 10 - 210.214.222.0/24 14862 0.3% AS9583 -- SIFY-AS-IN Sify Limited 11 - 210.214.232.0/24 14844 0.3% AS9583 -- SIFY-AS-IN Sify Limited 12 - 210.214.132.0/24 14821 0.3% AS9583 -- SIFY-AS-IN Sify Limited 13 - 210.214.117.0/24 14773 0.3% AS9583 -- SIFY-AS-IN Sify Limited 14 - 64.162.116.0/24 14428 0.3% AS5033 -- ISW - Internet Specialties West Inc. 15 - 212.85.223.0/24 14010 0.3% AS30306 -- AfOL-Sz-AS 16 - 212.85.220.0/24 13975 0.3% AS30306 -- AfOL-Sz-AS 17 - 210.214.184.0/24 13450 0.3% AS9583 -- SIFY-AS-IN Sify Limited 18 - 210.18.10.0/2413306 0.3% AS9583 -- SIFY-AS-IN Sify Limited 19 - 210.210.127.0/24 13025 0.3% AS9583 -- SIFY-AS-IN Sify Limited 20 - 66.63.32.0/19 12603 0.2% AS16559 -- REALCONNECT-01 - RealConnect, Inc Details at http://bgpupdates.potaroo.net
The Cidr Report
This report has been generated at Fri Feb 13 21:13:35 2009 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
06-02-09285832 177824
07-02-09285798 177687
08-02-09285807 177487
09-02-09285105 177994
10-02-09285977 177992
11-02-09286165 177022
12-02-09286477 177950
13-02-09286337 178268
AS Summary
30645 Number of ASes in routing system
13024 Number of ASes announcing only one prefix
4368 Largest number of prefixes announced by an AS
AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc.
89824768 Largest address span announced by an AS (/32s)
AS27064: DDN-ASNBLK1 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 13Feb09 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 286636 178252 10838437.8% All ASes
AS6389 4368 356 401291.8% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4223 1770 245358.1% TWTC - tw telecom holdings,
inc.
AS209 2830 1260 157055.5% ASN-QWEST - Qwest
Communications Corporation
AS4766 1772 508 126471.3% KIXS-AS-KR Korea Telecom
AS17488 1523 368 115575.8% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS4755 1210 233 97780.7% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS22773 1007 61 94693.9% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS1785 1785 903 88249.4% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS8151 1479 603 87659.2% Uninet S.A. de C.V.
AS8452 1084 255 82976.5% TEDATA TEDATA
AS11492 1212 472 74061.1% CABLEONE - CABLE ONE, INC.
AS19262 953 244 70974.4% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS18566 1061 466 59556.1% COVAD - Covad Communications
Co.
AS18101 753 168 58577.7% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS3356 1142 559 58351.1% LEVEL3 Level 3 Communications
AS6478 1235 675 56045.3% ATT-INTERNET3 - ATT WorldNet
Services
AS7545 736 187 54974.6% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS2706 550 43 50792.2% HKSUPER-HK-AP Pacific Internet
(Hong Kong) Limited
AS22047 619 116 50381.3% VTR BANDA ANCHA S.A.
AS17908 604 111 49381.6% TCISL Tata Communications
AS4808 616 156 46074.7% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS855605 146 45975.9% CANET-ASN-4 - Bell Aliant
AS7018 1439 995 44430.9% ATT-INTERNET4 - ATT WorldNet
Services
AS24560 671 242 42963.9% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS4134 904 477 42747.2% CHINANET-BACKBONE
No.31,Jin-rong Street
AS10620 747 322 42556.9% TV Cable S.A.
AS4668 701 284 41759.5% LGNET-AS-KR LG CNS
AS7011 966 554 41242.7% FRONTIER-AND-CITIZENS -
Frontier Communications of
America, Inc.
AS9443 504 92 41281.7% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS17676 527 116 41178.0% GIGAINFRA BB TECHNOLOGY
BGP Update Report
BGP Update Report Interval: 12-Jan-09 -to- 12-Feb-09 (32 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS9583 187305 4.3% 125.8 -- SIFY-AS-IN Sify Limited 2 - AS7643 167261 3.8% 285.9 -- VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) 3 - AS662949189 1.1% 756.8 -- NOAA-AS - NOAA 4 - AS30890 48137 1.1% 109.2 -- EVOLVA Evolva Telecom 5 - AS35805 41565 0.9% 110.0 -- UTG-AS United Telecom AS 6 - AS14420 31055 0.7% 123.2 -- ANDINATEL S.A. 7 - AS645828143 0.6% 58.3 -- Telgua 8 - AS30306 25107 0.6%6276.8 -- AfOL-Sz-AS 9 - AS505024109 0.6% 408.6 -- PSC-EXT - Pittsburgh Supercomputing Center 10 - AS845222589 0.5% 14.9 -- TEDATA TEDATA 11 - AS12500 21936 0.5%5484.0 -- RCS-AS RCS Autonomus System 12 - AS27757 21928 0.5% 160.1 -- ANDINATEL S.A. 13 - AS20115 21136 0.5% 10.2 -- CHARTER-NET-HKY-NC - Charter Communications 14 - AS30969 20102 0.5%2512.8 -- TAN-NET TransAfrica Networks 15 - AS638919952 0.5% 4.5 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 16 - AS23966 19602 0.5% 53.7 -- LDN-AS-AP LINKdotNET Telecom Limited 17 - AS33783 19399 0.4% 122.8 -- EEPAD 18 - AS815119180 0.4% 12.8 -- Uninet S.A. de C.V. 19 - AS21433 18998 0.4% 146.1 -- ACCENTUREFSSC Accenture London Delivery Centre 20 - AS209 18203 0.4% 6.3 -- ASN-QWEST - Qwest Communications Corporation TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS302877838 0.2%7838.0 -- ALON-USA - ALON USA, LP 2 - AS30306 25107 0.6%6276.8 -- AfOL-Sz-AS 3 - AS12500 21936 0.5%5484.0 -- RCS-AS RCS Autonomus System 4 - AS413823264 0.1%3264.0 -- TELEPORT-AS Teleport LLC Network AS 5 - AS30969 20102 0.5%2512.8 -- TAN-NET TransAfrica Networks 6 - AS281947118 0.2%2372.7 -- 7 - AS239172237 0.1%2237.0 -- BRIBIE-NET-AS-AP Bribie Island Net Multihomed, Brisbane 8 - AS190172085 0.1%2085.0 -- QUALCOMM-QWBS-LV - Qualcomm, Inc. 9 - AS503316305 0.4%1811.7 -- ISW - Internet Specialties West Inc. 10 - AS108066266 0.1%1566.5 -- AFP-NET - AGENCE FRANCE PRESSE 11 - AS16559 15253 0.3%1525.3 -- REALCONNECT-01 - RealConnect, Inc 12 - AS294272706 0.1%1353.0 -- AZM-AS Mercury Telecom 13 - AS451221318 0.0%1318.0 -- JASPACE-AS-ID-AP PT. JASPACE NET 14 - AS32398 11831 0.3%1314.6 -- REALNET-ASN-1 15 - AS300952584 0.1%1292.0 -- AS-30095 - Group M Worldwide, Inc. 16 - AS481291268 0.0%1268.0 -- IRBIS-TELECOMMUNICATIONS-AS IRBIS Telecommunications Ltd. 17 - AS259707548 0.2%1258.0 -- IAC - IAC Services LLC 18 - AS44265 13244 0.3%1204.0 -- SMOLTELECOM-NET Smoltelecom Ltd AS peering 19 - AS292242402 0.1%1201.0 -- HELLMANN Hellmann Worldwide Logistics GmbH Co KG 20 - AS353351123 0.0%1123.0 -- ESSTU-AS East-Siberian State Technological University AS TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 72.23.246.0/2423883 0.5% AS5050 -- PSC-EXT - Pittsburgh Supercomputing Center 2 - 144.36.245.0/24 16897 0.3% AS21433 -- ACCENTUREFSSC Accenture London Delivery Centre 3 - 192.35.129.0/24 16468 0.3% AS6629 -- NOAA-AS - NOAA 4 - 192.102.88.0/24 16325 0.3% AS6629 -- NOAA-AS - NOAA 5 - 64.162.116.0/24 16281 0.3% AS5033 -- ISW - Internet Specialties West Inc. 6 - 198.77.177.0/24 16198 0.3% AS6629 -- NOAA-AS - NOAA 7 - 221.134.32.0/24 13957 0.3% AS9583 -- SIFY-AS-IN Sify Limited 8 - 221.135.80.0/24 12943 0.3% AS9583 -- SIFY-AS-IN Sify Limited 9 - 190.152.103.0/24 12748 0.3% AS27757 -- ANDINATEL S.A. 10 - 210.214.151.0/24 12729 0.3% AS9583 -- SIFY-AS-IN Sify Limited 11 - 212.85.223.0/24 12392 0.3% AS30306 -- AfOL-Sz-AS 12 - 212.85.220.0/24 12363 0.3% AS30306 -- AfOL-Sz-AS 13 - 41.204.2.0/24 11684 0.2% AS32398 -- REALNET-ASN-1 14 - 124.7.201.0/2411454 0.2% AS9583 -- SIFY-AS-IN Sify Limited 15 - 222.255.51.64/26 10848 0.2% AS7643 -- VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) 16 - 192.12.120.0/24 10058 0.2% AS5691 -- MITRE-AS-5 - The MITRE Corporation 17 - 196.27.104.0/219856 0.2% AS30969 -- TAN-NET TransAfrica Networks 18 - 196.27.108.0/229795 0.2% AS30969 -- TAN-NET TransAfrica Networks 19 - 221.135.107.0/24 8910 0.2% AS9583 -- SIFY-AS-IN Sify Limited 20 - 210.214.222.0/24 8839 0.2% AS9583 -- SIFY-AS-IN Sify
BGP Update Report
BGP Update Report Interval: 05-Jan-09 -to- 05-Feb-09 (32 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS7643 132303 2.7% 225.0 -- VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) 2 - AS958396240 1.9% 64.9 -- SIFY-AS-IN Sify Limited 3 - AS662949704 1.0% 753.1 -- NOAA-AS - NOAA 4 - AS35805 41741 0.8% 111.9 -- UTG-AS United Telecom AS 5 - AS432331198 0.6% 7.3 -- TWTC - tw telecom holdings, inc. 6 - AS638930402 0.6% 6.9 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 7 - AS20115 27730 0.6% 13.1 -- CHARTER-NET-HKY-NC - Charter Communications 8 - AS209 26943 0.5% 9.4 -- ASN-QWEST - Qwest Communications Corporation 9 - AS645825467 0.5% 52.2 -- Telgua 10 - AS21433 24763 0.5% 189.0 -- ACCENTUREFSSC Accenture London Delivery Centre 11 - AS14420 24676 0.5% 99.5 -- ANDINATEL S.A. 12 - AS505023840 0.5% 404.1 -- PSC-EXT - Pittsburgh Supercomputing Center 13 - AS17488 22706 0.5% 14.9 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 14 - AS815122431 0.5% 15.0 -- Uninet S.A. de C.V. 15 - AS30306 22122 0.4%4424.4 -- AfOL-Sz-AS 16 - AS178521793 0.4% 11.6 -- AS-PAETEC-NET - PaeTec Communications, Inc. 17 - AS30890 21423 0.4% 47.7 -- EVOLVA Evolva Telecom 18 - AS33783 18849 0.4% 119.3 -- EEPAD 19 - AS845218817 0.4% 15.0 -- TEDATA TEDATA 20 - AS12500 18185 0.4%4546.2 -- RCS-AS RCS Autonomus System TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS302876672 0.1%6672.0 -- ALON-USA - ALON USA, LP 2 - AS12500 18185 0.4%4546.2 -- RCS-AS RCS Autonomus System 3 - AS30306 22122 0.4%4424.4 -- AfOL-Sz-AS 4 - AS481293071 0.1%3071.0 -- IRBIS-TELECOMMUNICATIONS-AS IRBIS Telecommunications Ltd. 5 - AS239172837 0.1%2837.0 -- BRIBIE-NET-AS-AP Bribie Island Net Multihomed, Brisbane 6 - AS327532567 0.1%2567.0 -- GLOBEOP-FINANCIAL-SERVICES-NYC1 - GlobeOp Financial Services 7 - AS281947026 0.1%2342.0 -- 8 - AS30969 16656 0.3%2082.0 -- TAN-NET TransAfrica Networks 9 - AS190171962 0.0%1962.0 -- QUALCOMM-QWBS-LV - Qualcomm, Inc. 10 - AS413821932 0.0%1932.0 -- TELEPORT-AS Teleport LLC Network AS 11 - AS300953183 0.1%1591.5 -- AS-30095 - Group M Worldwide, Inc. 12 - AS294273168 0.1%1584.0 -- AZM-AS Mercury Telecom 13 - AS451221580 0.0%1580.0 -- JASPACE-AS-ID-AP PT. JASPACE NET 14 - AS108066111 0.1%1527.8 -- AFP-NET - AGENCE FRANCE PRESSE 15 - AS32398 12631 0.2%1403.4 -- REALNET-ASN-1 16 - AS503313607 0.3%1360.7 -- ISW - Internet Specialties West Inc. 17 - AS292242652 0.1%1326.0 -- HELLMANN Hellmann Worldwide Logistics GmbH Co KG 18 - AS259707569 0.1%1261.5 -- IAC - IAC Services LLC 19 - AS44265 13266 0.3%1206.0 -- SMOLTELECOM-NET Smoltelecom Ltd AS peering 20 - AS242287649 0.1%1092.7 -- BARNETWORK-AP BarNetwork Pty Limited TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 72.23.246.0/2423597 0.4% AS5050 -- PSC-EXT - Pittsburgh Supercomputing Center 2 - 144.36.245.0/24 21213 0.4% AS21433 -- ACCENTUREFSSC Accenture London Delivery Centre 3 - 210.214.151.0/24 18829 0.3% AS9583 -- SIFY-AS-IN Sify Limited 4 - 124.7.201.0/2417774 0.3% AS9583 -- SIFY-AS-IN Sify Limited 5 - 192.35.129.0/24 16573 0.3% AS6629 -- NOAA-AS - NOAA 6 - 192.102.88.0/24 16419 0.3% AS6629 -- NOAA-AS - NOAA 7 - 198.77.177.0/24 16327 0.3% AS6629 -- NOAA-AS - NOAA 8 - 64.162.116.0/24 13558 0.2% AS5033 -- ISW - Internet Specialties West Inc. 9 - 41.204.2.0/24 12464 0.2% AS32398 -- REALNET-ASN-1 10 - 221.135.80.0/24 10902 0.2% AS9583 -- SIFY-AS-IN Sify Limited 12 - 212.85.223.0/24 10869 0.2% AS30306 -- AfOL-Sz-AS 13 - 212.85.220.0/24 10866 0.2% AS30306 -- AfOL-Sz-AS 14 - 192.12.120.0/24 10337 0.2% AS5691 -- MITRE-AS-5 - The MITRE Corporation 15 - 196.27.104.0/218100 0.1% AS30969 -- TAN-NET TransAfrica Networks 16 - 196.27.108.0/228036 0.1% AS30969 -- TAN-NET TransAfrica Networks 17 - 190.152.103.0/24 7801 0.1% AS27757 -- ANDINATEL S.A. 18 - 202.83.176.0/217577 0.1% AS24228 -- BARNETWORK-AP BarNetwork Pty Limited 19 - 202.92.235.0/246864 0.1% AS9498 -- BBIL-AP BHARTI Airtel Ltd. 20 - 65.214.174.0/246672 0.1% AS30287 -- ALON-USA - ALON USA, LP Details at
The Cidr Report
This report has been generated at Fri Feb 6 21:14:00 2009 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
30-01-09286408 178279
31-01-09286620 178119
01-02-09286594 178154
02-02-09286601 178111
03-02-09286348 177909
04-02-09285957 178007
05-02-09286084 177780
06-02-09285832 177674
AS Summary
30576 Number of ASes in routing system
12994 Number of ASes announcing only one prefix
4375 Largest number of prefixes announced by an AS
AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc.
89825024 Largest address span announced by an AS (/32s)
AS27064: DDN-ASNBLK1 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 06Feb09 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 285699 177676 10802337.8% All ASes
AS6389 4375 356 401991.9% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4221 1751 247058.5% TWTC - tw telecom holdings,
inc.
AS209 2830 1267 156355.2% ASN-QWEST - Qwest
Communications Corporation
AS4766 1766 506 126071.3% KIXS-AS-KR Korea Telecom
AS17488 1521 362 115976.2% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS4755 1201 233 96880.6% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS22773 1007 61 94693.9% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS8151 1485 608 87759.1% Uninet S.A. de C.V.
AS8452 1036 267 76974.2% TEDATA TEDATA
AS11492 1224 485 73960.4% CABLEONE - CABLE ONE, INC.
AS1785 1828 1112 71639.2% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS19262 946 239 70774.7% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS3356 1140 490 65057.0% LEVEL3 Level 3 Communications
AS18101 751 144 60780.8% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS18566 1061 466 59556.1% COVAD - Covad Communications
Co.
AS6478 1223 662 56145.9% ATT-INTERNET3 - ATT WorldNet
Services
AS7545 734 188 54674.4% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS2706 545 25 52095.4% HKSUPER-HK-AP Pacific Internet
(Hong Kong) Limited
AS22047 619 116 50381.3% VTR BANDA ANCHA S.A.
AS17908 603 109 49481.9% TCISL Tata Communications
AS855604 147 45775.7% CANET-ASN-4 - Bell Aliant
AS4808 610 156 45474.4% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS7018 1446 1002 44430.7% ATT-INTERNET4 - ATT WorldNet
Services
AS4134 904 478 42647.1% CHINANET-BACKBONE
No.31,Jin-rong Street
AS24560 664 240 42463.9% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS4668 701 284 41759.5% LGNET-AS-KR LG CNS
AS9443 504 92 41281.7% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS7011 962 551 41142.7% FRONTIER-AND-CITIZENS -
Frontier Communications of
America, Inc.
AS17676 527 116 41178.0% JPNIC-JP-ASN-BLOCK Japan
Network
The Cidr Report
This report has been generated at Fri Jan 30 21:13:57 2009 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
23-01-09286053 177941
24-01-09286089 178446
25-01-09286547 178462
26-01-09286835 178564
27-01-09287083 178066
28-01-09286198 178147
29-01-09286289 177870
30-01-09286408 178004
AS Summary
30507 Number of ASes in routing system
12982 Number of ASes announcing only one prefix
4379 Largest number of prefixes announced by an AS
AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc.
89881344 Largest address span announced by an AS (/32s)
AS27064: DDN-ASNBLK1 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 30Jan09 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 286397 178149 10824837.8% All ASes
AS6389 4379 356 402391.9% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4216 1741 247558.7% TWTC - tw telecom holdings,
inc.
AS209 2828 1264 156455.3% ASN-QWEST - Qwest
Communications Corporation
AS4766 1771 499 127271.8% KIXS-AS-KR Korea Telecom
AS17488 1507 345 116277.1% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS4755 1200 231 96980.8% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS22773 1007 62 94593.8% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS8151 1476 615 86158.3% Uninet S.A. de C.V.
AS1785 1803 1036 76742.5% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS11492 1218 458 76062.4% CABLEONE - CABLE ONE, INC.
AS8452 1021 283 73872.3% TEDATA TEDATA
AS19262 944 243 70174.3% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS2386 1566 899 66742.6% INS-AS - ATT Data
Communications Services
AS3356 1143 489 65457.2% LEVEL3 Level 3 Communications
AS18101 766 143 62381.3% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS18566 1061 466 59556.1% COVAD - Covad Communications
Co.
AS6478 1204 660 54445.2% ATT-INTERNET3 - ATT WorldNet
Services
AS7545 690 158 53277.1% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS2706 545 25 52095.4% HKSUPER-HK-AP Pacific Internet
(Hong Kong) Limited
AS22047 623 114 50981.7% VTR BANDA ANCHA S.A.
AS17908 602 111 49181.6% TCISL Tata Communications
AS855602 146 45675.7% CANET-ASN-4 - Bell Aliant
AS4808 612 158 45474.2% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS7018 1438 1003 43530.3% ATT-INTERNET4 - ATT WorldNet
Services
AS4134 902 475 42747.3% CHINANET-BACKBONE
No.31,Jin-rong Street
AS24560 661 239 42263.8% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS4668 699 283 41659.5% LGNET-AS-KR LG CNS
AS9443 504 92 41281.7% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS17676 527 115 41278.2% GIGAINFRA BB TECHNOLOGY Corp.
AS7011 958 550 40842.6% FRONTIER-AND-CITIZENS -
The Cidr Report
This report has been generated at Fri Jan 9 21:13:41 2009 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
02-01-09283623 175637
03-01-09283602 175700
04-01-09283670 175635
05-01-09283909 176295
06-01-09283855 176406
07-01-09283951 176430
08-01-09284121 176471
09-01-09284392 176424
AS Summary
30340 Number of ASes in routing system
12915 Number of ASes announcing only one prefix
4389 Largest number of prefixes announced by an AS
AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc.
89820672 Largest address span announced by an AS (/32s)
AS27064: DDN-ASNBLK1 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 09Jan09 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 284312 176403 10790938.0% All ASes
AS6389 4389 357 403291.9% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4204 1728 247658.9% TWTC - tw telecom holdings,
inc.
AS209 2845 1268 157755.4% ASN-QWEST - Qwest
Communications Corporation
AS4766 1755 493 126271.9% KIXS-AS-KR Korea Telecom
AS17488 1482 358 112475.8% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS4755 1181 217 96481.6% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS22773 996 63 93393.7% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS8151 1407 523 88462.8% Uninet S.A. de C.V.
AS1785 1706 841 86550.7% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS11492 1232 466 76662.2% CABLEONE - CABLE ONE, INC.
AS2386 1582 902 68043.0% INS-AS - ATT Data
Communications Services
AS19262 922 244 67873.5% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS18101 781 141 64081.9% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS3356 1110 473 63757.4% LEVEL3 Level 3 Communications
AS6478 1192 604 58849.3% ATT-INTERNET3 - ATT WorldNet
Services
AS18566 1060 501 55952.7% COVAD - Covad Communications
Co.
AS17908 599 69 53088.5% TCISL Tata Communications
AS2706 545 23 52295.8% HKSUPER-HK-AP Pacific Internet
(Hong Kong) Limited
AS7545 682 172 51074.8% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS4808 624 157 46774.8% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS855593 133 46077.6% CANET-ASN-4 - Bell Aliant
AS17676 525 65 46087.6% GIGAINFRA BB TECHNOLOGY Corp.
AS22047 565 127 43877.5% VTR BANDA ANCHA S.A.
AS7018 1430 993 43730.6% ATT-INTERNET4 - ATT WorldNet
Services
AS20115 1852 1417 43523.5% CHARTER-NET-HKY-NC - Charter
Communications
AS4134 896 463 43348.3% CHINANET-BACKBONE
No.31,Jin-rong Street
AS9443 503 81 42283.9% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS24560 659 239 42063.7% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS4668 694 278 41659.9% LGNET-AS-KR LG CNS
AS7011 937 541 39642.3%
BGP Update Report
BGP Update Report Interval: 08-Dec-08 -to- 08-Jan-09 (32 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS35805 220394 4.0% 792.8 -- UTG-AS United Telecom AS 2 - AS4323 114511 2.1% 26.9 -- TWTC - tw telecom holdings, inc. 3 - AS209 74238 1.3% 24.5 -- ASN-QWEST - Qwest Communications Corporation 4 - AS958365350 1.2% 53.0 -- SIFY-AS-IN Sify Limited 5 - AS845245626 0.8% 27.7 -- TEDATA TEDATA 6 - AS24863 43186 0.8% 62.0 -- LINKdotNET-AS 7 - AS17488 41723 0.8% 26.6 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 8 - AS17974 39962 0.7% 81.7 -- TELKOMNET-AS2-AP PT Telekomunikasi Indonesia 9 - AS475532644 0.6% 26.7 -- TATACOMM-AS TATA Communications formerly VSNL is Leading ISP 10 - AS29571 32463 0.6% 255.6 -- CITelecom-AS 11 - AS645829885 0.5% 74.5 -- Telgua 12 - AS523728515 0.5% 648.1 -- DODNIC - DoD Network Information Center 13 - AS764327380 0.5% 25.9 -- VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) 14 - AS20115 27196 0.5% 12.1 -- CHARTER-NET-HKY-NC - Charter Communications 15 - AS29372 25880 0.5% 281.3 -- SFR-NETWORK SFR 16 - AS638925651 0.5% 5.8 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 17 - AS122125004 0.5% 35.0 -- ASN-TELSTRA Telstra Pty Ltd 18 - AS30969 24251 0.4%3031.4 -- TAN-NET TransAfrica Networks 19 - AS18101 24157 0.4% 29.9 -- RIL-IDC Reliance Infocom Ltd Internet Data Centre, 20 - AS754523398 0.4% 34.2 -- TPG-INTERNET-AP TPG Internet Pty Ltd TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS302876252 0.1%6252.0 -- ALON-USA - ALON USA, LP 2 - AS30306 20288 0.4%5072.0 -- AfOL-Sz-AS 3 - AS30969 24251 0.4%3031.4 -- TAN-NET TransAfrica Networks 4 - AS481292828 0.1%2828.0 -- IRBIS-TELECOMMUNICATIONS-AS IRBIS Telecommunications Ltd. 5 - AS32398 15709 0.3%2618.2 -- REALNET-ASN-1 6 - AS292827123 0.1%2374.3 -- EMENTOR-AS Enfo Oyj 7 - AS281946826 0.1%2275.3 -- 8 - AS8599 2075 0.0%2075.0 -- Ulyanovsk State University Network 9 - AS327531915 0.0%1915.0 -- GLOBEOP-FINANCIAL-SERVICES-NYC1 - GlobeOp Financial Services 10 - AS239171774 0.0%1774.0 -- BRIBIE-NET-AS-AP Bribie Island Net Multihomed, Brisbane 11 - AS190171568 0.0%1568.0 -- QUALCOMM-QWBS-LV - Qualcomm Wireless Business Solutions 12 - AS410077539 0.1%1507.8 -- CTCASTANA CTC ASTANA, KZ 13 - AS8668 5984 0.1% 854.9 -- TELONE-AS TelOne Zimbabwe P/L 14 - AS11816 13666 0.2% 854.1 -- SetarNet 15 - AS569110481 0.2% 806.2 -- MITRE-AS-5 - The MITRE Corporation 16 - AS35805 220394 4.0% 792.8 -- UTG-AS United Telecom AS 17 - AS162144584 0.1% 764.0 -- CERIST 18 - AS3944 1948 0.0% 649.3 -- PARTAN-LAB - Partan Partan 19 - AS523728515 0.5% 648.1 -- DODNIC - DoD Network Information Center 20 - AS471235777 0.1% 641.9 -- MEDNAUTILUS Mednautilus Autonomous System TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 41.204.2.0/24 15651 0.3% AS32398 -- REALNET-ASN-1 2 - 210.214.151.0/24 15049 0.3% AS9583 -- SIFY-AS-IN Sify Limited 3 - 199.2.119.0/2413542 0.2% AS11816 -- SetarNet 4 - 196.27.104.0/21 11944 0.2% AS30969 -- TAN-NET TransAfrica Networks 5 - 196.27.108.0/22 11883 0.2% AS30969 -- TAN-NET TransAfrica Networks 6 - 192.12.120.0/24 10434 0.2% AS5691 -- MITRE-AS-5 - The MITRE Corporation 7 - 221.134.222.0/24 10247 0.2% AS9583 -- SIFY-AS-IN Sify Limited 8 - 212.85.223.0/24 10121 0.2% AS30306 -- AfOL-Sz-AS 9 - 212.85.220.0/24 10119 0.2% AS30306 -- AfOL-Sz-AS 10 - 118.95.130.0/239709 0.2% AS9583 -- SIFY-AS-IN Sify Limited 11 - 195.189.68.0/247020 0.1% AS41007 -- CTCASTANA CTC ASTANA, KZ 12 - 221.135.80.0/246787 0.1% AS9583 -- SIFY-AS-IN Sify Limited 13 - 65.214.174.0/246252 0.1% AS30287 -- ALON-USA - ALON USA, LP 14 - 89.4.131.0/24 5979 0.1% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 15 - 222.255.51.64/26 5728 0.1% AS7643 -- VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) 16 - 91.68.238.0/24 5326 0.1% AS29372 -- SFR-NETWORK SFR 17 - 64.162.116.0/245277 0.1% AS5033 -- ISW - Internet Specialties West Inc. 18 - 91.68.242.0/24 5181 0.1% AS29372 -- SFR-NETWORK SFR 19 - 205.106.88.0/224421 0.1% AS5237 --
BGP Update Report
BGP Update Report Interval: 01-Dec-08 -to- 01-Jan-09 (32 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS35805 250272 3.2% 897.0 -- UTG-AS United Telecom AS 2 - AS4323 122592 1.6% 28.9 -- TWTC - tw telecom holdings, inc. 3 - AS9583 114770 1.5% 91.8 -- SIFY-AS-IN Sify Limited 4 - AS209 82772 1.1% 27.2 -- ASN-QWEST - Qwest Communications Corporation 5 - AS453881992 1.0% 16.1 -- ERX-CERNET-BKB China Education and Research Network Center 6 - AS629859306 0.8% 27.1 -- ASN-CXA-PH-6298-CBS - Cox Communications Inc. 7 - AS845249246 0.6% 30.0 -- TEDATA TEDATA 8 - AS638946045 0.6% 10.4 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 9 - AS764344654 0.6% 34.7 -- VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) 10 - AS17974 42677 0.5% 72.5 -- TELKOMNET-AS2-AP PT Telekomunikasi Indonesia 11 - AS24863 41693 0.5% 60.1 -- LINKdotNET-AS 12 - AS30306 40259 0.5%8051.8 -- AfOL-Sz-AS 13 - AS647838479 0.5% 20.5 -- ATT-INTERNET3 - ATT WorldNet Services 14 - AS645837586 0.5% 94.2 -- Telgua 15 - AS20115 36726 0.5% 16.3 -- CHARTER-NET-HKY-NC - Charter Communications 16 - AS17488 35422 0.5% 22.5 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 17 - AS475534561 0.4% 28.5 -- TATACOMM-AS TATA Communications formerly VSNL is Leading ISP 18 - AS29372 31659 0.4% 285.2 -- SFR-NETWORK SFR 19 - AS815130440 0.4% 21.6 -- Uninet S.A. de C.V. 20 - AS238630336 0.4% 18.3 -- INS-AS - ATT Data Communications Services TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS29282 27352 0.3%9117.3 -- EMENTOR-AS Enfo Oyj 2 - AS30306 40259 0.5%8051.8 -- AfOL-Sz-AS 3 - AS302876619 0.1%6619.0 -- ALON-USA - ALON USA, LP 4 - AS32398 23391 0.3%2923.9 -- REALNET-ASN-1 5 - AS46115 28844 0.4%2884.4 -- LUTHER - Luther College 6 - AS30969 21396 0.3%2674.5 -- TAN-NET TransAfrica Networks 7 - AS41007 10802 0.1%2160.4 -- CTCASTANA CTC ASTANA, KZ 8 - AS439254250 0.1%2125.0 -- MOLDCELL_AS Moldcell SA Autonomous System 9 - AS239172066 0.0%2066.0 -- BRIBIE-NET-AS-AP Bribie Island Net Multihomed, Brisbane 10 - AS8599 1988 0.0%1988.0 -- Ulyanovsk State University Network 11 - AS319011087 0.0%1087.0 -- THECHIMES - The Chimes, Inc. 12 - AS569112188 0.1% 937.5 -- MITRE-AS-5 - The MITRE Corporation 13 - AS8668 6456 0.1% 922.3 -- TELONE-AS TelOne Zimbabwe P/L 14 - AS15561 920 0.0% 920.0 -- CDS-ITALY C.D.S. Informatica S.r.l. 15 - AS48129 909 0.0% 909.0 -- IRBIS-TELECOMMUNICATIONS-AS IRBIS Telecommunications Ltd. 16 - AS35805 250272 3.2% 897.0 -- UTG-AS United Telecom AS 17 - AS19017 892 0.0% 892.0 -- QUALCOMM-QWBS-LV - Qualcomm Wireless Business Solutions 18 - AS162144910 0.1% 818.3 -- CERIST 19 - AS285192418 0.0% 806.0 -- Universidad Autonoma de Guadalajara 20 - AS5033 7176 0.1% 797.3 -- ISW - Internet Specialties West Inc. TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 210.214.151.0/24 23239 0.3% AS9583 -- SIFY-AS-IN Sify Limited 2 - 41.204.2.0/24 22979 0.3% AS32398 -- REALNET-ASN-1 3 - 221.134.222.0/24 21839 0.3% AS9583 -- SIFY-AS-IN Sify Limited 4 - 77.95.144.0/2218567 0.2% AS29282 -- EMENTOR-AS Enfo Oyj 5 - 212.85.220.0/24 18449 0.2% AS30306 -- AfOL-Sz-AS 6 - 212.85.223.0/24 18420 0.2% AS30306 -- AfOL-Sz-AS 7 - 221.135.80.0/24 13021 0.2% AS9583 -- SIFY-AS-IN Sify Limited 8 - 118.95.130.0/23 13019 0.2% AS9583 -- SIFY-AS-IN Sify Limited 9 - 124.7.201.0/2412983 0.2% AS9583 -- SIFY-AS-IN Sify Limited 10 - 192.12.120.0/24 12062 0.1% AS5691 -- MITRE-AS-5 - The MITRE Corporation 11 - 196.27.104.0/21 10553 0.1% AS30969 -- TAN-NET TransAfrica Networks 12 - 196.27.108.0/22 10518 0.1% AS30969 -- TAN-NET TransAfrica Networks 13 - 199.2.119.0/24 9131 0.1% AS11816 -- SetarNet 14 - 217.69.48.0/20 8774 0.1% AS29282 -- EMENTOR-AS Enfo Oyj 15 - 195.189.68.0/247941 0.1% AS41007 -- CTCASTANA CTC ASTANA, KZ 16 - 89.4.131.0/24 7356 0.1% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 17 - 64.162.116.0/247062 0.1% AS5033 -- ISW - Internet Specialties West Inc. 18 - 65.214.174.0/246619 0.1% AS30287 -- ALON-USA - ALON USA, LP 19 - 192.102.88.0/246529
The Cidr Report
This report has been generated at Fri Jan 2 21:19:11 2009 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
26-12-08284016 175054
27-12-08283830 175219
28-12-08283977 175112
29-12-08283978 175457
30-12-08283996 175982
31-12-08284233 175829
01-01-09283834 175623
02-01-09283623 175676
AS Summary
30285 Number of ASes in routing system
12884 Number of ASes announcing only one prefix
4382 Largest number of prefixes announced by an AS
AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc.
89820672 Largest address span announced by an AS (/32s)
AS27064: DDN-ASNBLK1 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 02Jan09 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 283598 175619 10797938.1% All ASes
AS6389 4382 357 402591.9% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4198 1715 248359.1% TWTC - tw telecom holdings,
inc.
AS209 2845 1266 157955.5% ASN-QWEST - Qwest
Communications Corporation
AS4766 1754 492 126271.9% KIXS-AS-KR Korea Telecom
AS17488 1477 337 114077.2% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS1785 1705 719 98657.8% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS4755 1185 212 97382.1% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS22773 994 62 93293.8% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS8151 1400 535 86561.8% Uninet S.A. de C.V.
AS11492 1231 462 76962.5% CABLEONE - CABLE ONE, INC.
AS19262 943 254 68973.1% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS2386 1581 901 68043.0% INS-AS - ATT Data
Communications Services
AS18101 782 139 64382.2% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS3356 1110 470 64057.7% LEVEL3 Level 3 Communications
AS18566 1060 516 54451.3% COVAD - Covad Communications
Co.
AS9583 901 368 53359.2% SIFY-AS-IN Sify Limited
AS2706 545 23 52295.8% HKSUPER-HK-AP Pacific Internet
(Hong Kong) Limited
AS7545 679 170 50975.0% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS4808 623 156 46775.0% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS855593 129 46478.2% CANET-ASN-4 - Bell Aliant
AS6478 1032 574 45844.4% ATT-INTERNET3 - ATT WorldNet
Services
AS17676 522 64 45887.7% GIGAINFRA BB TECHNOLOGY Corp.
AS9443 523 82 44184.3% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS7018 1425 987 43830.7% ATT-INTERNET4 - ATT WorldNet
Services
AS22047 565 127 43877.5% VTR BANDA ANCHA S.A.
AS4134 896 465 43148.1% CHINANET-BACKBONE
No.31,Jin-rong Street
AS17908 590 159 43173.1% TCISL Tata Communications
AS20115 1850 1422 42823.1% CHARTER-NET-HKY-NC - Charter
Communications
AS24560 661 233 42864.8% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS4668 693 278 415
BGP Update Report
BGP Update Report Interval: 05-Nov-08 -to- 06-Dec-08 (32 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS4538 232133 1.9% 45.7 -- ERX-CERNET-BKB China Education and Research Network Center 2 - AS9583 228435 1.9% 180.9 -- SIFY-AS-IN Sify Limited 3 - AS6389 130689 1.1% 29.6 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 4 - AS29282 101489 0.8% 33829.7 -- EMENTOR-AS Enfo Oyj 5 - AS180394573 0.8% 66.6 -- ICMNET-5 - Sprint 6 - AS662984972 0.7%1307.3 -- NOAA-AS - NOAA 7 - AS629883856 0.7% 38.4 -- ASN-CXA-PH-6298-CBS - Cox Communications Inc. 8 - AS24863 83220 0.7% 121.8 -- LINKdotNET-AS 9 - AS815173001 0.6% 33.2 -- Uninet S.A. de C.V. 10 - AS209 71988 0.6% 23.2 -- ASN-QWEST - Qwest Communications Corporation 11 - AS20115 63026 0.5% 30.4 -- CHARTER-NET-HKY-NC - Charter Communications 12 - AS647861690 0.5% 35.2 -- ATT-INTERNET3 - ATT WorldNet Services 13 - AS432354750 0.5% 12.9 -- TWTC - tw telecom holdings, inc. 14 - AS645854576 0.5% 121.8 -- Telgua 15 - AS764352459 0.4% 32.4 -- VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) 16 - AS238651415 0.4% 31.0 -- INS-AS - ATT Data Communications Services 17 - AS346249113 0.4% 244.3 -- HINET Data Communication Business Group 18 - AS17488 48606 0.4% 33.4 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 19 - AS17854 0.4% 26.6 -- AS-PAETEC-NET - PaeTec Communications, Inc. 20 - AS35805 42761 0.3% 206.6 -- UTG-AS United Telecom AS TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS29282 101489 0.8% 33829.7 -- EMENTOR-AS Enfo Oyj 2 - AS14106 32024 0.3% 16012.0 -- LEPMED01 - Leprechaun, LLC 3 - AS302874928 0.0%4928.0 -- ALON-USA - ALON USA, LP 4 - AS30306 19541 0.2%3908.2 -- AfOL-Sz-AS 5 - AS41007 18540 0.1%3708.0 -- CTCASTANA CTC ASTANA, KZ 6 - AS46115 36509 0.3%3650.9 -- LUTHER - Luther College 7 - AS413016771 0.1%3354.2 -- UPITT-AS - University of Pittsburgh 8 - AS32398 26554 0.2%3319.2 -- REALNET-ASN-1 9 - AS155612969 0.0%2969.0 -- CDS-ITALY C.D.S. Informatica S.r.l. 10 - AS239172755 0.0%2755.0 -- BRIBIE-NET-AS-AP Bribie Island Net Multihomed, Brisbane 11 - AS477312735 0.0%2735.0 -- ISDC-AS SC ISDC ROMANIA SRL 12 - AS30969 21860 0.2%2732.5 -- TAN-NET TransAfrica Networks 13 - AS503321730 0.2%2414.4 -- ISW - Internet Specialties West Inc. 14 - AS285197180 0.1%2393.3 -- Universidad Autonoma de Guadalajara 15 - AS439254293 0.0%2146.5 -- MOLDCELL_AS Moldcell SA Autonomous System 16 - AS481312096 0.0%2096.0 -- VANGUARD-BG-AS Vanguard SA 17 - AS319012083 0.0%2083.0 -- THECHIMES - The Chimes, Inc. 18 - AS257992000 0.0%2000.0 -- HOLMAN - Holman Enterprises 19 - AS190171988 0.0%1988.0 -- QUALCOMM-QWBS-LV - Qualcomm Wireless Business Solutions 20 - AS149 1725 0.0%1725.0 -- DNIC - DoD Network Information Center TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 77.95.144.0/2271003 0.6% AS29282 -- EMENTOR-AS Enfo Oyj 2 - 221.134.222.0/24 60022 0.5% AS9583 -- SIFY-AS-IN Sify Limited 3 - 210.214.151.0/24 58695 0.5% AS9583 -- SIFY-AS-IN Sify Limited 4 - 221.135.80.0/24 38881 0.3% AS9583 -- SIFY-AS-IN Sify Limited 5 - 124.7.201.0/2434334 0.3% AS9583 -- SIFY-AS-IN Sify Limited 6 - 217.69.48.0/2030450 0.2% AS29282 -- EMENTOR-AS Enfo Oyj 7 - 192.102.88.0/24 27094 0.2% AS6629 -- NOAA-AS - NOAA 8 - 192.35.129.0/24 26804 0.2% AS6629 -- NOAA-AS - NOAA 9 - 198.77.177.0/24 26722 0.2% AS6629 -- NOAA-AS - NOAA 10 - 41.204.2.0/24 25863 0.2% AS32398 -- REALNET-ASN-1 11 - 64.162.116.0/24 21556 0.2% AS5033 -- ISW - Internet Specialties West Inc. 12 - 8.192.154.0/2417463 0.1% AS14106 -- LEPMED01 - Leprechaun, LLC 13 - 150.212.224.0/19 16681 0.1% AS4130 -- UPITT-AS - University of Pittsburgh 14 - 192.12.120.0/24 16423 0.1% AS5691 -- MITRE-AS-5 - The MITRE Corporation 15 - 65.44.76.0/24 14561 0.1% AS14106 -- LEPMED01 - Leprechaun, LLC 16 - 89.4.131.0/24 11665 0.1% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 17 - 203.63.26.0/2411403 0.1% AS9747 -- EZINTERNET-AS-AP EZInternet Pty Ltd 18 - 196.27.104.0/21 10553 0.1% AS30969 -- TAN-NET TransAfrica Networks 19 -
The Cidr Report
This report has been generated at Fri Dec 26 21:36:05 2008 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
19-12-08284488 176165
20-12-08284886 176110
21-12-08286454 176286
22-12-08285356 176551
23-12-08285575 174818
24-12-08283855 175041
25-12-08283945 175020
26-12-08284016 175040
AS Summary
30272 Number of ASes in routing system
12884 Number of ASes announcing only one prefix
4383 Largest number of prefixes announced by an AS
AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc.
89819392 Largest address span announced by an AS (/32s)
AS27064: DDN-ASNBLK1 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 26Dec08 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 283752 175027 10872538.3% All ASes
AS6389 4383 357 402691.9% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4198 1716 248259.1% TWTC - tw telecom holdings,
inc.
AS209 2846 1267 157955.5% ASN-QWEST - Qwest
Communications Corporation
AS4766 1746 486 126072.2% KIXS-AS-KR Korea Telecom
AS17488 1345 330 101575.5% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS1785 1707 707 100058.6% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS4755 1184 200 98483.1% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS22773 995 62 93393.8% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS8151 1401 548 85360.9% Uninet S.A. de C.V.
AS6478 1611 818 79349.2% ATT-INTERNET3 - ATT WorldNet
Services
AS11492 1220 446 77463.4% CABLEONE - CABLE ONE, INC.
AS19262 943 258 68572.6% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS2386 1585 902 68343.1% INS-AS - ATT Data
Communications Services
AS18101 782 113 66985.5% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS3356 1109 461 64858.4% LEVEL3 Level 3 Communications
AS18566 1060 478 58254.9% COVAD - Covad Communications
Co.
AS9583 904 368 53659.3% SIFY-AS-IN Sify Limited
AS2706 543 21 52296.1% HKSUPER-HK-AP Pacific Internet
(Hong Kong) Limited
AS7545 677 171 50674.7% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS4808 625 159 46674.6% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS855593 129 46478.2% CANET-ASN-4 - Bell Aliant
AS17676 523 65 45887.6% GIGAINFRA BB TECHNOLOGY Corp.
AS4134 892 443 44950.3% CHINANET-BACKBONE
No.31,Jin-rong Street
AS9443 525 83 44284.2% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS7018 1427 988 43930.8% ATT-INTERNET4 - ATT WorldNet
Services
AS22047 565 127 43877.5% VTR BANDA ANCHA S.A.
AS20115 1851 1433 41822.6% CHARTER-NET-HKY-NC - Charter
Communications
AS4668 693 278 41559.9% LGNET-AS-KR LG CNS
AS24560 636 223 41364.9% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS17908 586 179 40769.5%
BGP Update Report
BGP Update Report Interval: 05-Nov-08 -to- 06-Dec-08 (32 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS4538 232133 1.9% 45.7 -- ERX-CERNET-BKB China Education and Research Network Center 2 - AS9583 228435 1.9% 180.9 -- SIFY-AS-IN Sify Limited 3 - AS6389 130689 1.1% 29.6 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 4 - AS29282 101489 0.8% 33829.7 -- EMENTOR-AS Enfo Oyj 5 - AS180394573 0.8% 66.6 -- ICMNET-5 - Sprint 6 - AS662984972 0.7%1307.3 -- NOAA-AS - NOAA 7 - AS629883856 0.7% 38.4 -- ASN-CXA-PH-6298-CBS - Cox Communications Inc. 8 - AS24863 83220 0.7% 121.8 -- LINKdotNET-AS 9 - AS815173001 0.6% 33.2 -- Uninet S.A. de C.V. 10 - AS209 71988 0.6% 23.2 -- ASN-QWEST - Qwest Communications Corporation 11 - AS20115 63026 0.5% 30.4 -- CHARTER-NET-HKY-NC - Charter Communications 12 - AS647861690 0.5% 35.2 -- ATT-INTERNET3 - ATT WorldNet Services 13 - AS432354750 0.5% 12.9 -- TWTC - tw telecom holdings, inc. 14 - AS645854576 0.5% 121.8 -- Telgua 15 - AS764352459 0.4% 32.4 -- VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) 16 - AS238651415 0.4% 31.0 -- INS-AS - ATT Data Communications Services 17 - AS346249113 0.4% 244.3 -- HINET Data Communication Business Group 18 - AS17488 48606 0.4% 33.4 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 19 - AS17854 0.4% 26.6 -- AS-PAETEC-NET - PaeTec Communications, Inc. 20 - AS35805 42761 0.3% 206.6 -- UTG-AS United Telecom AS TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS29282 101489 0.8% 33829.7 -- EMENTOR-AS Enfo Oyj 2 - AS14106 32024 0.3% 16012.0 -- LEPMED01 - Leprechaun, LLC 3 - AS302874928 0.0%4928.0 -- ALON-USA - ALON USA, LP 4 - AS30306 19541 0.2%3908.2 -- AfOL-Sz-AS 5 - AS41007 18540 0.1%3708.0 -- CTCASTANA CTC ASTANA, KZ 6 - AS46115 36509 0.3%3650.9 -- LUTHER - Luther College 7 - AS413016771 0.1%3354.2 -- UPITT-AS - University of Pittsburgh 8 - AS32398 26554 0.2%3319.2 -- REALNET-ASN-1 9 - AS155612969 0.0%2969.0 -- CDS-ITALY C.D.S. Informatica S.r.l. 10 - AS239172755 0.0%2755.0 -- BRIBIE-NET-AS-AP Bribie Island Net Multihomed, Brisbane 11 - AS477312735 0.0%2735.0 -- ISDC-AS SC ISDC ROMANIA SRL 12 - AS30969 21860 0.2%2732.5 -- TAN-NET TransAfrica Networks 13 - AS503321730 0.2%2414.4 -- ISW - Internet Specialties West Inc. 14 - AS285197180 0.1%2393.3 -- Universidad Autonoma de Guadalajara 15 - AS439254293 0.0%2146.5 -- MOLDCELL_AS Moldcell SA Autonomous System 16 - AS481312096 0.0%2096.0 -- VANGUARD-BG-AS Vanguard SA 17 - AS319012083 0.0%2083.0 -- THECHIMES - The Chimes, Inc. 18 - AS257992000 0.0%2000.0 -- HOLMAN - Holman Enterprises 19 - AS190171988 0.0%1988.0 -- QUALCOMM-QWBS-LV - Qualcomm Wireless Business Solutions 20 - AS149 1725 0.0%1725.0 -- DNIC - DoD Network Information Center TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 77.95.144.0/2271003 0.6% AS29282 -- EMENTOR-AS Enfo Oyj 2 - 221.134.222.0/24 60022 0.5% AS9583 -- SIFY-AS-IN Sify Limited 3 - 210.214.151.0/24 58695 0.5% AS9583 -- SIFY-AS-IN Sify Limited 4 - 221.135.80.0/24 38881 0.3% AS9583 -- SIFY-AS-IN Sify Limited 5 - 124.7.201.0/2434334 0.3% AS9583 -- SIFY-AS-IN Sify Limited 6 - 217.69.48.0/2030450 0.2% AS29282 -- EMENTOR-AS Enfo Oyj 7 - 192.102.88.0/24 27094 0.2% AS6629 -- NOAA-AS - NOAA 8 - 192.35.129.0/24 26804 0.2% AS6629 -- NOAA-AS - NOAA 9 - 198.77.177.0/24 26722 0.2% AS6629 -- NOAA-AS - NOAA 10 - 41.204.2.0/24 25863 0.2% AS32398 -- REALNET-ASN-1 11 - 64.162.116.0/24 21556 0.2% AS5033 -- ISW - Internet Specialties West Inc. 12 - 8.192.154.0/2417463 0.1% AS14106 -- LEPMED01 - Leprechaun, LLC 13 - 150.212.224.0/19 16681 0.1% AS4130 -- UPITT-AS - University of Pittsburgh 14 - 192.12.120.0/24 16423 0.1% AS5691 -- MITRE-AS-5 - The MITRE Corporation 15 - 65.44.76.0/24 14561 0.1% AS14106 -- LEPMED01 - Leprechaun, LLC 16 - 89.4.131.0/24 11665 0.1% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 17 - 203.63.26.0/2411403 0.1% AS9747 -- EZINTERNET-AS-AP EZInternet Pty Ltd 18 - 196.27.104.0/21 10553 0.1% AS30969 -- TAN-NET TransAfrica Networks 19 -
The Cidr Report
This report has been generated at Fri Dec 19 21:19:34 2008 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
12-12-08282624 173848
13-12-08282898 173838
14-12-08282975 173850
15-12-08282781 174282
16-12-08283153 174958
17-12-08283693 175193
18-12-08284094 175932
19-12-08284488 176119
AS Summary
30262 Number of ASes in routing system
12884 Number of ASes announcing only one prefix
4398 Largest number of prefixes announced by an AS
AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc.
89820672 Largest address span announced by an AS (/32s)
AS27064: DDN-ASNBLK1 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 19Dec08 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 284867 176167 10870038.2% All ASes
AS6389 4398 370 402891.6% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4206 1720 248659.1% TWTC - tw telecom holdings,
inc.
AS209 2983 1320 166355.7% ASN-QWEST - Qwest
Communications Corporation
AS4766 1659 480 117971.1% KIXS-AS-KR Korea Telecom
AS17488 1442 323 111977.6% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS1785 1706 708 99858.5% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS4755 1184 205 97982.7% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS22773 995 62 93393.8% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS8151 1406 532 87462.2% Uninet S.A. de C.V.
AS6478 1633 825 80849.5% ATT-INTERNET3 - ATT WorldNet
Services
AS11492 1230 454 77663.1% CABLEONE - CABLE ONE, INC.
AS18101 786 100 68687.3% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS19262 941 257 68472.7% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS2386 1587 905 68243.0% INS-AS - ATT Data
Communications Services
AS3356 1096 452 64458.8% LEVEL3 Level 3 Communications
AS18566 1060 478 58254.9% COVAD - Covad Communications
Co.
AS2706 543 21 52296.1% HKSUPER-HK-AP Pacific Internet
(Hong Kong) Limited
AS7545 676 170 50674.9% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS855598 131 46778.1% CANET-ASN-4 - Bell Aliant
AS4808 624 157 46774.8% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS17676 522 64 45887.7% GIGAINFRA BB TECHNOLOGY Corp.
AS24560 634 178 45671.9% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS4134 901 452 44949.8% CHINANET-BACKBONE
No.31,Jin-rong Street
AS9443 525 84 44184.0% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS7018 1438 998 44030.6% ATT-INTERNET4 - ATT WorldNet
Services
AS22047 565 127 43877.5% VTR BANDA ANCHA S.A.
AS20115 1854 1432 42222.8% CHARTER-NET-HKY-NC - Charter
Communications
AS4668 691 278 41359.8% LGNET-AS-KR LG CNS
AS4780 729 327 40255.1% SEEDNET Digital United Inc.
AS7011 927 536 39142.2%
BGP Update Report
BGP Update Report Interval: 05-Nov-08 -to- 06-Dec-08 (32 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS4538 232133 1.9% 45.7 -- ERX-CERNET-BKB China Education and Research Network Center 2 - AS9583 228435 1.9% 180.9 -- SIFY-AS-IN Sify Limited 3 - AS6389 130689 1.1% 29.6 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 4 - AS29282 101489 0.8% 33829.7 -- EMENTOR-AS Enfo Oyj 5 - AS180394573 0.8% 66.6 -- ICMNET-5 - Sprint 6 - AS662984972 0.7%1307.3 -- NOAA-AS - NOAA 7 - AS629883856 0.7% 38.4 -- ASN-CXA-PH-6298-CBS - Cox Communications Inc. 8 - AS24863 83220 0.7% 121.8 -- LINKdotNET-AS 9 - AS815173001 0.6% 33.2 -- Uninet S.A. de C.V. 10 - AS209 71988 0.6% 23.2 -- ASN-QWEST - Qwest Communications Corporation 11 - AS20115 63026 0.5% 30.4 -- CHARTER-NET-HKY-NC - Charter Communications 12 - AS647861690 0.5% 35.2 -- ATT-INTERNET3 - ATT WorldNet Services 13 - AS432354750 0.5% 12.9 -- TWTC - tw telecom holdings, inc. 14 - AS645854576 0.5% 121.8 -- Telgua 15 - AS764352459 0.4% 32.4 -- VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) 16 - AS238651415 0.4% 31.0 -- INS-AS - ATT Data Communications Services 17 - AS346249113 0.4% 244.3 -- HINET Data Communication Business Group 18 - AS17488 48606 0.4% 33.4 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 19 - AS17854 0.4% 26.6 -- AS-PAETEC-NET - PaeTec Communications, Inc. 20 - AS35805 42761 0.3% 206.6 -- UTG-AS United Telecom AS TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS29282 101489 0.8% 33829.7 -- EMENTOR-AS Enfo Oyj 2 - AS14106 32024 0.3% 16012.0 -- LEPMED01 - Leprechaun, LLC 3 - AS302874928 0.0%4928.0 -- ALON-USA - ALON USA, LP 4 - AS30306 19541 0.2%3908.2 -- AfOL-Sz-AS 5 - AS41007 18540 0.1%3708.0 -- CTCASTANA CTC ASTANA, KZ 6 - AS46115 36509 0.3%3650.9 -- LUTHER - Luther College 7 - AS413016771 0.1%3354.2 -- UPITT-AS - University of Pittsburgh 8 - AS32398 26554 0.2%3319.2 -- REALNET-ASN-1 9 - AS155612969 0.0%2969.0 -- CDS-ITALY C.D.S. Informatica S.r.l. 10 - AS239172755 0.0%2755.0 -- BRIBIE-NET-AS-AP Bribie Island Net Multihomed, Brisbane 11 - AS477312735 0.0%2735.0 -- ISDC-AS SC ISDC ROMANIA SRL 12 - AS30969 21860 0.2%2732.5 -- TAN-NET TransAfrica Networks 13 - AS503321730 0.2%2414.4 -- ISW - Internet Specialties West Inc. 14 - AS285197180 0.1%2393.3 -- Universidad Autonoma de Guadalajara 15 - AS439254293 0.0%2146.5 -- MOLDCELL_AS Moldcell SA Autonomous System 16 - AS481312096 0.0%2096.0 -- VANGUARD-BG-AS Vanguard SA 17 - AS319012083 0.0%2083.0 -- THECHIMES - The Chimes, Inc. 18 - AS257992000 0.0%2000.0 -- HOLMAN - Holman Enterprises 19 - AS190171988 0.0%1988.0 -- QUALCOMM-QWBS-LV - Qualcomm Wireless Business Solutions 20 - AS149 1725 0.0%1725.0 -- DNIC - DoD Network Information Center TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 77.95.144.0/2271003 0.6% AS29282 -- EMENTOR-AS Enfo Oyj 2 - 221.134.222.0/24 60022 0.5% AS9583 -- SIFY-AS-IN Sify Limited 3 - 210.214.151.0/24 58695 0.5% AS9583 -- SIFY-AS-IN Sify Limited 4 - 221.135.80.0/24 38881 0.3% AS9583 -- SIFY-AS-IN Sify Limited 5 - 124.7.201.0/2434334 0.3% AS9583 -- SIFY-AS-IN Sify Limited 6 - 217.69.48.0/2030450 0.2% AS29282 -- EMENTOR-AS Enfo Oyj 7 - 192.102.88.0/24 27094 0.2% AS6629 -- NOAA-AS - NOAA 8 - 192.35.129.0/24 26804 0.2% AS6629 -- NOAA-AS - NOAA 9 - 198.77.177.0/24 26722 0.2% AS6629 -- NOAA-AS - NOAA 10 - 41.204.2.0/24 25863 0.2% AS32398 -- REALNET-ASN-1 11 - 64.162.116.0/24 21556 0.2% AS5033 -- ISW - Internet Specialties West Inc. 12 - 8.192.154.0/2417463 0.1% AS14106 -- LEPMED01 - Leprechaun, LLC 13 - 150.212.224.0/19 16681 0.1% AS4130 -- UPITT-AS - University of Pittsburgh 14 - 192.12.120.0/24 16423 0.1% AS5691 -- MITRE-AS-5 - The MITRE Corporation 15 - 65.44.76.0/24 14561 0.1% AS14106 -- LEPMED01 - Leprechaun, LLC 16 - 89.4.131.0/24 11665 0.1% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 17 - 203.63.26.0/2411403 0.1% AS9747 -- EZINTERNET-AS-AP EZInternet Pty Ltd 18 - 196.27.104.0/21 10553 0.1% AS30969 -- TAN-NET TransAfrica Networks 19 -
The Cidr Report
This report has been generated at Fri Dec 12 21:18:53 2008 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
05-12-08290432 177961
06-12-08292661 177588
07-12-08294362 177884
08-12-08294699 172849
09-12-08282262 172817
10-12-08282192 173193
11-12-08282545 173526
12-12-08282624 174029
AS Summary
30159 Number of ASes in routing system
12832 Number of ASes announcing only one prefix
4373 Largest number of prefixes announced by an AS
AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc.
89828608 Largest address span announced by an AS (/32s)
AS27064: DDN-ASNBLK1 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 12Dec08 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 282952 173938 10901438.5% All ASes
AS6389 4373 356 401791.9% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4197 1719 247859.0% TWTC - tw telecom holdings,
inc.
AS209 2979 635 234478.7% ASN-QWEST - Qwest
Communications Corporation
AS17488 1442 336 110676.7% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS4766 1501 455 104669.7% KIXS-AS-KR Korea Telecom
AS1785 1703 719 98457.8% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS4755 1178 200 97883.0% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS22773 992 62 93093.8% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS8151 1405 539 86661.6% Uninet S.A. de C.V.
AS6478 1604 804 80049.9% ATT-INTERNET3 - ATT WorldNet
Services
AS11492 1229 454 77563.1% CABLEONE - CABLE ONE, INC.
AS18566 1060 336 72468.3% COVAD - Covad Communications
Co.
AS18101 783 95 68887.9% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS19262 938 256 68272.7% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS2386 1590 915 67542.5% INS-AS - ATT Data
Communications Services
AS3356 1104 458 64658.5% LEVEL3 Level 3 Communications
AS2706 543 21 52296.1% HKSUPER-HK-AP Pacific Internet
(Hong Kong) Limited
AS7545 678 171 50774.8% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS4808 632 159 47374.8% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS4134 905 438 46751.6% CHINANET-BACKBONE
No.31,Jin-rong Street
AS855580 119 46179.5% CANET-ASN-4 - Bell Aliant
AS17676 522 64 45887.7% GIGAINFRA BB TECHNOLOGY Corp.
AS9443 525 84 44184.0% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS20115 1850 1412 43823.7% CHARTER-NET-HKY-NC - Charter
Communications
AS7018 1425 990 43530.5% ATT-INTERNET4 - ATT WorldNet
Services
AS24560 630 195 43569.0% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS22047 553 121 43278.1% VTR BANDA ANCHA S.A.
AS4804 515 87 42883.1% MPX-AS Microplex PTY LTD
AS4668 691 276 41560.1% LGNET-AS-KR LG CNS
AS4780 730 329 40154.9%
BGP Update Report
BGP Update Report Interval: 03-Nov-08 -to- 04-Dec-08 (32 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS9583 220468 1.9% 174.8 -- SIFY-AS-IN Sify Limited 2 - AS4538 206468 1.8% 40.7 -- ERX-CERNET-BKB China Education and Research Network Center 3 - AS6389 124316 1.1% 28.2 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 4 - AS29282 89169 0.8% 29723.0 -- EMENTOR-AS Enfo Oyj 5 - AS662985767 0.8%1319.5 -- NOAA-AS - NOAA 6 - AS24863 82881 0.7% 121.3 -- LINKdotNET-AS 7 - AS180382320 0.7% 58.0 -- ICMNET-5 - Sprint 8 - AS10396 72006 0.6%1241.5 -- COQUI-NET - DATACOM CARIBE, INC. 9 - AS209 71474 0.6% 23.1 -- ASN-QWEST - Qwest Communications Corporation 10 - AS815165993 0.6% 30.0 -- Uninet S.A. de C.V. 11 - AS20115 61091 0.5% 29.5 -- CHARTER-NET-HKY-NC - Charter Communications 12 - AS647859692 0.5% 34.0 -- ATT-INTERNET3 - ATT WorldNet Services 13 - AS645852991 0.5% 120.2 -- Telgua 14 - AS629852316 0.5% 24.0 -- ASN-CXA-PH-6298-CBS - Cox Communications Inc. 15 - AS764350161 0.4% 31.1 -- VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) 16 - AS346249339 0.4% 238.4 -- HINET Data Communication Business Group 17 - AS238647910 0.4% 29.4 -- INS-AS - ATT Data Communications Services 18 - AS178545772 0.4% 26.7 -- AS-PAETEC-NET - PaeTec Communications, Inc. 19 - AS17488 45056 0.4% 30.9 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 20 - AS432340246 0.3% 24.9 -- TWTC - tw telecom holdings, inc. TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS29282 89169 0.8% 29723.0 -- EMENTOR-AS Enfo Oyj 2 - AS14106 37485 0.3% 18742.5 -- LEPMED01 - Leprechaun, LLC 3 - AS302874792 0.0%4792.0 -- ALON-USA - ALON USA, LP 4 - AS41007 18173 0.2%3634.6 -- CTCASTANA CTC ASTANA, KZ 5 - AS413016727 0.1%3345.4 -- UPITT-AS - University of Pittsburgh 6 - AS32398 24113 0.2%3014.1 -- REALNET-ASN-1 7 - AS155612972 0.0%2972.0 -- CDS-ITALY C.D.S. Informatica S.r.l. 8 - AS46115 29419 0.3%2941.9 -- LUTHER - Luther College 9 - AS477312873 0.0%2873.0 -- ISDC-AS SC ISDC ROMANIA SRL 10 - AS239172680 0.0%2680.0 -- BRIBIE-NET-AS-AP Bribie Island Net Multihomed, Brisbane 11 - AS30306 12883 0.1%2576.6 -- AfOL-Sz-AS 12 - AS30969 19941 0.2%2492.6 -- TAN-NET TransAfrica Networks 13 - AS401942473 0.0%2473.0 -- INHOUSE-ASSOCIATES-LC - Inhouse Associates, L.C. 14 - AS503321917 0.2%2435.2 -- ISW - Internet Specialties West Inc. 15 - AS285197156 0.1%2385.3 -- Universidad Autonoma de Guadalajara 16 - AS257992188 0.0%2188.0 -- HOLMAN - Holman Enterprises 17 - AS14220 10896 0.1%2179.2 -- I2A - I 20 Access 18 - AS439254211 0.0%2105.5 -- MOLDCELL_AS Moldcell SA Autonomous System 19 - AS481312088 0.0%2088.0 -- VANGUARD-BG-AS Vanguard SA 20 - AS319012079 0.0%2079.0 -- THECHIMES - The Chimes, Inc. TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 77.95.144.0/2271550 0.6% AS29282 -- EMENTOR-AS Enfo Oyj 2 - 221.134.222.0/24 60545 0.5% AS9583 -- SIFY-AS-IN Sify Limited 3 - 210.214.151.0/24 58419 0.5% AS9583 -- SIFY-AS-IN Sify Limited 4 - 221.135.80.0/24 39086 0.3% AS9583 -- SIFY-AS-IN Sify Limited 5 - 124.7.201.0/2430734 0.3% AS9583 -- SIFY-AS-IN Sify Limited 6 - 192.102.88.0/24 27336 0.2% AS6629 -- NOAA-AS - NOAA 7 - 192.35.129.0/24 27027 0.2% AS6629 -- NOAA-AS - NOAA 8 - 198.77.177.0/24 27007 0.2% AS6629 -- NOAA-AS - NOAA 9 - 41.204.2.0/24 23566 0.2% AS32398 -- REALNET-ASN-1 10 - 64.162.116.0/24 21754 0.2% AS5033 -- ISW - Internet Specialties West Inc. 11 - 8.192.154.0/2420398 0.2% AS14106 -- LEPMED01 - Leprechaun, LLC 12 - 217.69.48.0/2017600 0.1% AS29282 -- EMENTOR-AS Enfo Oyj 13 - 65.44.76.0/24 17087 0.1% AS14106 -- LEPMED01 - Leprechaun, LLC 14 - 150.212.224.0/19 16637 0.1% AS4130 -- UPITT-AS - University of Pittsburgh 15 - 192.12.120.0/24 16241 0.1% AS5691 -- MITRE-AS-5 - The MITRE Corporation 16 - 89.4.131.0/24 11785 0.1% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 17 - 203.63.26.0/2411202 0.1% AS9747 -- EZINTERNET-AS-AP EZInternet Pty Ltd 18 - 196.27.104.0/219627 0.1% AS30969 -- TAN-NET TransAfrica Networks 19 - 196.27.108.0/229585
The Cidr Report
This report has been generated at Fri Dec 5 21:22:08 2008 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
28-11-08288778 176595
29-11-08289005 177125
30-11-08290303 177473
01-12-08290335 176312
02-12-08290415 176118
03-12-08290216 177472
04-12-08290560 177808
05-12-08290432 177896
AS Summary
30175 Number of ASes in routing system
12790 Number of ASes announcing only one prefix
5072 Largest number of prefixes announced by an AS
AS4538 : ERX-CERNET-BKB China Education and Research Network
Center
89886720 Largest address span announced by an AS (/32s)
AS27064: DDN-ASNBLK1 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 05Dec08 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 292660 177961 11469939.2% All ASes
AS4538 5072 879 419382.7% ERX-CERNET-BKB China Education
and Research Network Center
AS6389 4380 356 402491.9% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4196 1764 243258.0% TWTC - tw telecom holdings,
inc.
AS209 2984 1311 167356.1% ASN-QWEST - Qwest
Communications Corporation
AS1785 1703 165 153890.3% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS17488 1443 291 115279.8% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS4755 1177 200 97783.0% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS22773 998 64 93493.6% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS8151 1396 504 89263.9% Uninet S.A. de C.V.
AS6478 1641 809 83250.7% ATT-INTERNET3 - ATT WorldNet
Services
AS18566 1059 240 81977.3% COVAD - Covad Communications
Co.
AS11492 1222 451 77163.1% CABLEONE - CABLE ONE, INC.
AS18101 785 73 71290.7% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS2386 1617 933 68442.3% INS-AS - ATT Data
Communications Services
AS19262 935 262 67372.0% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS3356 1108 509 59954.1% LEVEL3 Level 3 Communications
AS9498 696 120 57682.8% BBIL-AP BHARTI Airtel Ltd.
AS7545 668 167 50175.0% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS2706 543 75 46886.2% HKSUPER-HK-AP Pacific Internet
(Hong Kong) Limited
AS17676 522 62 46088.1% GIGAINFRA BB TECHNOLOGY Corp.
AS20115 1847 1387 46024.9% CHARTER-NET-HKY-NC - Charter
Communications
AS24560 626 171 45572.7% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS4766 1420 967 45331.9% KIXS-AS-KR Korea Telecom
AS4808 624 174 45072.1% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS855561 117 44479.1% CANET-ASN-4 - Bell Aliant
AS7018 1452 1008 44430.6% ATT-INTERNET4 - ATT WorldNet
Services
AS9443 523 84 43983.9% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS4134 908 472 43648.0% CHINANET-BACKBONE
No.31,Jin-rong Street
BGP Update Report
BGP Update Report Interval: 27-Oct-08 -to- 27-Nov-08 (32 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS4538 252085 1.8% 49.7 -- ERX-CERNET-BKB China Education and Research Network Center 2 - AS9583 214247 1.6% 178.7 -- SIFY-AS-IN Sify Limited 3 - AS6389 149692 1.1% 33.8 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 4 - AS10396 133984 1.0%2310.1 -- COQUI-NET - DATACOM CARIBE, INC. 5 - AS180392457 0.7% 65.0 -- ICMNET-5 - Sprint 6 - AS24863 87976 0.6% 130.1 -- LINKdotNET-AS 7 - AS209 87816 0.6% 28.0 -- ASN-QWEST - Qwest Communications Corporation 8 - AS29282 84487 0.6% 28162.3 -- EMENTOR-AS Enfo Oyj 9 - AS662982966 0.6%1276.4 -- NOAA-AS - NOAA 10 - AS629878393 0.6% 35.8 -- ASN-CXA-PH-6298-CBS - Cox Communications Inc. 11 - AS815177243 0.6% 35.1 -- Uninet S.A. de C.V. 12 - AS20115 73975 0.5% 35.6 -- CHARTER-NET-HKY-NC - Charter Communications 13 - AS23126 61169 0.5% 262.5 -- CENTURYTEL-SOLUTIONS-LLC - CenturyTel Solutions, LLC 14 - AS178557403 0.4% 33.4 -- AS-PAETEC-NET - PaeTec Communications, Inc. 15 - AS238657115 0.4% 35.0 -- INS-AS - ATT Data Communications Services 16 - AS17488 54430 0.4% 37.4 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 17 - AS346251294 0.4% 250.2 -- HINET Data Communication Business Group 18 - AS647850954 0.4% 30.0 -- ATT-INTERNET3 - ATT WorldNet Services 19 - AS701850053 0.4% 33.6 -- ATT-INTERNET4 - ATT WorldNet Services 20 - AS432349971 0.4% 31.0 -- TWTC - tw telecom holdings, inc. TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS29282 84487 0.6% 28162.3 -- EMENTOR-AS Enfo Oyj 2 - AS14106 45703 0.3% 22851.5 -- LEPMED01 - Leprechaun, LLC 3 - AS302874758 0.0%4758.0 -- ALON-USA - ALON USA, LP 4 - AS401943900 0.0%3900.0 -- INHOUSE-ASSOCIATES-LC - Inhouse Associates, L.C. 5 - AS28194 17903 0.1%3580.6 -- 6 - AS14220 17184 0.1%3436.8 -- I2A - I 20 Access 7 - AS41007 16674 0.1%3334.8 -- CTCASTANA CTC ASTANA, KZ 8 - AS413016562 0.1%3312.4 -- UPITT-AS - University of Pittsburgh 9 - AS503327181 0.2%3020.1 -- ISW - Internet Specialties West Inc. 10 - AS257992923 0.0%2923.0 -- HOLMAN - Holman Enterprises 11 - AS477312628 0.0%2628.0 -- ISDC-AS SC ISDC ROMANIA SRL 12 - AS30969 20782 0.1%2597.8 -- TAN-NET TransAfrica Networks 13 - AS239172503 0.0%2503.0 -- BRIBIE-NET-AS-AP Bribie Island Net Multihomed, Brisbane 14 - AS10396 133984 1.0%2310.1 -- COQUI-NET - DATACOM CARIBE, INC. 15 - AS481312072 0.0%2072.0 -- VANGUARD-BG-AS Vanguard SA 16 - AS8266 1909 0.0%1909.0 -- NEXUSTEL Nexus Telecommunications 17 - AS217643427 0.0%1713.5 -- ESOFTINC-NET - eSoft, Inc. 18 - AS432991590 0.0%1590.0 -- TELECONTACT-AS Telecontact Ltd. 19 - AS146201576 0.0%1576.0 -- ITALK - iTalk Global Communications, Inc. 20 - AS222471533 0.0%1533.0 -- LETOURNEAUUNIVERSITY - LeTourneau University TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 77.95.144.0/2264151 0.5% AS29282 -- EMENTOR-AS Enfo Oyj 2 - 221.134.222.0/24 62147 0.4% AS9583 -- SIFY-AS-IN Sify Limited 3 - 210.214.151.0/24 57883 0.4% AS9583 -- SIFY-AS-IN Sify Limited 4 - 221.135.80.0/24 39274 0.3% AS9583 -- SIFY-AS-IN Sify Limited 5 - 64.162.116.0/24 26905 0.2% AS5033 -- ISW - Internet Specialties West Inc. 6 - 192.102.88.0/24 26330 0.2% AS6629 -- NOAA-AS - NOAA 7 - 198.77.177.0/24 26015 0.2% AS6629 -- NOAA-AS - NOAA 8 - 192.35.129.0/24 25952 0.2% AS6629 -- NOAA-AS - NOAA 9 - 8.192.154.0/2424903 0.2% AS14106 -- LEPMED01 - Leprechaun, LLC 10 - 65.44.76.0/24 20800 0.1% AS14106 -- LEPMED01 - Leprechaun, LLC 11 - 217.69.48.0/2020308 0.1% AS29282 -- EMENTOR-AS Enfo Oyj 12 - 124.7.201.0/2418082 0.1% AS9583 -- SIFY-AS-IN Sify Limited 13 - 150.212.224.0/19 16415 0.1% AS4130 -- UPITT-AS - University of Pittsburgh 14 - 192.12.120.0/24 16401 0.1% AS5691 -- MITRE-AS-5 - The MITRE Corporation 15 - 194.126.143.0/24 14659 0.1% AS9051 -- IDM Autonomous System 16 - 221.128.192.0/18 12978 0.1% AS18231 -- EXATT-AS-AP IOL NETCOM LTD 17 - 89.4.131.0/24 12120 0.1% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 18 - 41.204.2.0/24 11416 0.1% AS32398 --
The Cidr Report
This report has been generated at Fri Nov 28 21:24:45 2008 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
21-11-08291693 179552
22-11-08292056 179242
23-11-08292318 178139
24-11-08292375 179063
25-11-08292506 179813
26-11-08292651 178174
27-11-08292308 176215
28-11-08288778 176644
AS Summary
30082 Number of ASes in routing system
12755 Number of ASes announcing only one prefix
5069 Largest number of prefixes announced by an AS
AS4538 : ERX-CERNET-BKB China Education and Research Network
Center
89820928 Largest address span announced by an AS (/32s)
AS27064: DDN-ASNBLK1 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 28Nov08 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 289048 176623 11242538.9% All ASes
AS4538 5069 877 419282.7% ERX-CERNET-BKB China Education
and Research Network Center
AS6389 4379 356 402391.9% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS209 2991 1319 167255.9% ASN-QWEST - Qwest
Communications Corporation
AS1785 1701 205 149687.9% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS6298 2168 681 148768.6% ASN-CXA-PH-6298-CBS - Cox
Communications Inc.
AS17488 1442 293 114979.7% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS4323 1589 458 113171.2% TWTC - tw telecom holdings,
inc.
AS4755 1175 202 97382.8% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS6478 1608 760 84852.7% ATT-INTERNET3 - ATT WorldNet
Services
AS8151 1395 559 83659.9% Uninet S.A. de C.V.
AS18566 1059 242 81777.1% COVAD - Covad Communications
Co.
AS11492 1219 451 76863.0% CABLEONE - CABLE ONE, INC.
AS2386 1597 917 68042.6% INS-AS - ATT Data
Communications Services
AS19262 932 255 67772.6% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS18101 787 183 60476.7% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS3356 1106 524 58252.6% LEVEL3 Level 3 Communications
AS9498 692 115 57783.4% BBIL-AP BHARTI Airtel Ltd.
AS7545 660 154 50676.7% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS4808 624 157 46774.8% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS22773 1003 545 45845.7% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS20115 1840 1386 45424.7% CHARTER-NET-HKY-NC - Charter
Communications
AS24560 625 172 45372.5% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS7018 1442 999 44330.7% ATT-INTERNET4 - ATT WorldNet
Services
AS17676 522 79 44384.9% GIGAINFRA BB TECHNOLOGY Corp.
AS855560 119 44178.8% CANET-ASN-4 - Bell Aliant
AS9443 523 84 43983.9% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS4766 1331 896 43532.7% KIXS-AS-KR Korea Telecom
AS22047 552 121 43178.1% VTR BANDA ANCHA S.A.
AS4134 907 477 43047.4% CHINANET-BACKBONE
BGP Update Report
BGP Update Report Interval: 20-Oct-08 -to- 20-Nov-08 (32 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS4538 193657 1.6% 38.1 -- ERX-CERNET-BKB China Education and Research Network Center 2 - AS9583 193365 1.6% 162.9 -- SIFY-AS-IN Sify Limited 3 - AS10396 143531 1.2%2474.7 -- COQUI-NET - DATACOM CARIBE, INC. 4 - AS6389 130827 1.1% 29.6 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 5 - AS180385966 0.7% 60.6 -- ICMNET-5 - Sprint 6 - AS662984544 0.7%1300.7 -- NOAA-AS - NOAA 7 - AS209 73219 0.6% 23.3 -- ASN-QWEST - Qwest Communications Corporation 8 - AS29282 69396 0.6% 23132.0 -- EMENTOR-AS Enfo Oyj 9 - AS20115 67855 0.6% 29.0 -- CHARTER-NET-HKY-NC - Charter Communications 10 - AS23126 64248 0.6% 275.7 -- CENTURYTEL-SOLUTIONS-LLC - CenturyTel Solutions, LLC 11 - AS815155648 0.5% 39.3 -- Uninet S.A. de C.V. 12 - AS629852709 0.5% 24.6 -- ASN-CXA-PH-6298-CBS - Cox Communications Inc. 13 - AS238650591 0.4% 30.5 -- INS-AS - ATT Data Communications Services 14 - AS178548678 0.4% 28.3 -- AS-PAETEC-NET - PaeTec Communications, Inc. 15 - AS34116 47022 0.4% 470.2 -- CYBER-AS Cyber Net AS 16 - AS645846003 0.4% 114.2 -- Telgua 17 - AS14106 45697 0.4% 22848.5 -- LEPMED01 - Leprechaun, LLC 18 - AS647845085 0.4% 26.7 -- ATT-INTERNET3 - ATT WorldNet Services 19 - AS701844569 0.4% 30.2 -- ATT-INTERNET4 - ATT WorldNet Services 20 - AS764342615 0.4% 27.9 -- VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS29282 69396 0.6% 23132.0 -- EMENTOR-AS Enfo Oyj 2 - AS14106 45697 0.4% 22848.5 -- LEPMED01 - Leprechaun, LLC 3 - AS432999709 0.1%9709.0 -- TELECONTACT-AS Telecontact Ltd. 4 - AS302876429 0.1%6429.0 -- ALON-USA - ALON USA, LP 5 - AS22492 13574 0.1%4524.7 -- 6 - AS401944209 0.0%4209.0 -- INHOUSE-ASSOCIATES-LC - Inhouse Associates, L.C. 7 - AS370267700 0.1%3850.0 -- SALT-ASN 8 - AS14220 17992 0.1%3598.4 -- I2A - I 20 Access 9 - AS145933497 0.0%3497.0 -- BRAND-INSTITUTE - Brand Instiute, Inc. 10 - AS413016261 0.1%3252.2 -- UPITT-AS - University of Pittsburgh 11 - AS257993250 0.0%3250.0 -- HOLMAN - Holman Enterprises 12 - AS41007 15591 0.1%3118.2 -- CTCASTANA CTC ASTANA, KZ 13 - AS503326266 0.2%2918.4 -- ISW - Internet Specialties West Inc. 14 - AS28194 14074 0.1%2814.8 -- 15 - AS30969 21480 0.2%2685.0 -- TAN-NET TransAfrica Networks 16 - AS10396 143531 1.2%2474.7 -- COQUI-NET - DATACOM CARIBE, INC. 17 - AS477312468 0.0%2468.0 -- ISDC-AS SC ISDC ROMANIA SRL 18 - AS239172319 0.0%2319.0 -- BRIBIE-NET-AS-AP Bribie Island Net Multihomed, Brisbane 19 - AS481312059 0.0%2059.0 -- VANGUARD-BG-AS Vanguard SA 20 - AS222472005 0.0%2005.0 -- LETOURNEAUUNIVERSITY - LeTourneau University TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 221.134.222.0/24 61640 0.5% AS9583 -- SIFY-AS-IN Sify Limited 2 - 210.214.151.0/24 57932 0.5% AS9583 -- SIFY-AS-IN Sify Limited 3 - 77.95.144.0/2247824 0.4% AS29282 -- EMENTOR-AS Enfo Oyj 4 - 221.135.80.0/24 40588 0.3% AS9583 -- SIFY-AS-IN Sify Limited 5 - 192.102.88.0/24 26905 0.2% AS6629 -- NOAA-AS - NOAA 6 - 198.77.177.0/24 26549 0.2% AS6629 -- NOAA-AS - NOAA 7 - 192.35.129.0/24 26543 0.2% AS6629 -- NOAA-AS - NOAA 8 - 64.162.116.0/24 26051 0.2% AS5033 -- ISW - Internet Specialties West Inc. 9 - 8.192.154.0/2424907 0.2% AS14106 -- LEPMED01 - Leprechaun, LLC 10 - 194.126.143.0/24 24674 0.2% AS9051 -- IDM Autonomous System 11 - 192.12.120.0/24 24632 0.2% AS5691 -- MITRE-AS-5 - The MITRE Corporation 12 - 217.69.48.0/2021553 0.2% AS29282 -- EMENTOR-AS Enfo Oyj 13 - 65.44.76.0/24 20790 0.2% AS14106 -- LEPMED01 - Leprechaun, LLC 14 - 221.128.192.0/18 18168 0.1% AS18231 -- EXATT-AS-AP IOL NETCOM LTD 15 - 150.212.224.0/19 16152 0.1% AS4130 -- UPITT-AS - University of Pittsburgh 16 - 200.33.104.0/23 13714 0.1% AS21603 -- Universidad La Salle, AC 17 - 12.2.46.0/24 13530 0.1% AS22492 -- 18 - 89.4.131.0/24 12531 0.1% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 19 - 203.63.26.0/2411031 0.1% AS9747 -- EZINTERNET-AS-AP EZInternet Pty
The Cidr Report
This report has been generated at Fri Nov 21 21:25:56 2008 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
14-11-08287463 175819
15-11-08288017 176099
16-11-08288342 1
17-11-08 1 176622
18-11-08288552 177404
19-11-08288990 177113
20-11-08290680 178437
21-11-08291693 179577
AS Summary
30068 Number of ASes in routing system
12708 Number of ASes announcing only one prefix
5063 Largest number of prefixes announced by an AS
AS4538 : ERX-CERNET-BKB China Education and Research Network
Center
89764864 Largest address span announced by an AS (/32s)
AS27064: DDN-ASNBLK1 - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 21Nov08 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 291934 179551 11238338.5% All ASes
AS4538 5063 877 418682.7% ERX-CERNET-BKB China Education
and Research Network Center
AS6389 4380 361 401991.8% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS209 3009 1336 167355.6% ASN-QWEST - Qwest
Communications Corporation
AS6298 2158 900 125858.3% ASN-CXA-PH-6298-CBS - Cox
Communications Inc.
AS17488 1428 299 112979.1% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS1785 1702 606 109664.4% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS4323 1592 516 107667.6% TWTC - tw telecom holdings,
inc.
AS4755 1207 214 99382.3% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS22773 1013 85 92891.6% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS6478 1677 760 91754.7% ATT-INTERNET3 - ATT WorldNet
Services
AS8151 1401 570 83159.3% Uninet S.A. de C.V.
AS11492 1217 470 74761.4% CABLEONE - CABLE ONE, INC.
AS2386 1604 923 68142.5% INS-AS - ATT Data
Communications Services
AS19262 930 256 67472.5% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS4766 1150 495 65557.0% KIXS-AS-KR Korea Telecom
AS18101 788 177 61177.5% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS9498 690 116 57483.2% BBIL-AP BHARTI Airtel Ltd.
AS3356 1089 516 57352.6% LEVEL3 Level 3 Communications
AS18566 1059 552 50747.9% COVAD - Covad Communications
Co.
AS7545 663 168 49574.7% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS4808 634 158 47675.1% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS855597 134 46377.6% CANET-ASN-4 - Bell Aliant
AS24560 623 173 45072.2% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS17676 522 79 44384.9% GIGAINFRA BB TECHNOLOGY Corp.
AS7018 1439 998 44130.6% ATT-INTERNET4 - ATT WorldNet
Services
AS9443 525 84 44184.0% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS22047 568 154 41472.9% VTR BANDA ANCHA S.A.
AS4668 695 282 41359.4% LGNET-AS-KR LG CNS
AS4780 735 330 40555.1% SEEDNET Digital United Inc.
AS4804 501 100 40180.0% MPX-AS Microplex PTY LTD
BGP Update Report
BGP Update Report Interval: 13-Oct-08 -to- 13-Nov-08 (32 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS9583 192824 1.6% 169.3 -- SIFY-AS-IN Sify Limited 2 - AS4538 185313 1.5% 36.4 -- ERX-CERNET-BKB China Education and Research Network Center 3 - AS10396 153901 1.3%2653.5 -- COQUI-NET - DATACOM CARIBE, INC. 4 - AS6389 130178 1.1% 29.5 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 5 - AS180389603 0.8% 63.6 -- ICMNET-5 - Sprint 6 - AS662985589 0.7%1316.8 -- NOAA-AS - NOAA 7 - AS20115 66122 0.6% 29.6 -- CHARTER-NET-HKY-NC - Charter Communications 8 - AS23126 64323 0.5% 278.5 -- CENTURYTEL-SOLUTIONS-LLC - CenturyTel Solutions, LLC 9 - AS815162013 0.5% 43.1 -- Uninet S.A. de C.V. 10 - AS209 58003 0.5% 18.3 -- ASN-QWEST - Qwest Communications Corporation 11 - AS629856546 0.5% 26.7 -- ASN-CXA-PH-6298-CBS - Cox Communications Inc. 12 - AS238652486 0.4% 31.8 -- INS-AS - ATT Data Communications Services 13 - AS29282 47473 0.4% 15824.3 -- EMENTOR-AS Enfo Oyj 14 - AS905145081 0.4% 280.0 -- IDM Autonomous System 15 - AS34116 43926 0.4% 439.3 -- CYBER-AS Cyber Net AS 16 - AS764343390 0.4% 24.5 -- VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) 17 - AS178542164 0.3% 24.6 -- AS-PAETEC-NET - PaeTec Communications, Inc. 18 - AS14106 41600 0.3% 20800.0 -- LEPMED01 - Leprechaun, LLC 19 - AS645841193 0.3% 97.2 -- Telgua 20 - AS17488 40525 0.3% 26.2 -- HATHWAY-NET-AP Hathway IP Over Cable Internet TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS14106 41600 0.3% 20800.0 -- LEPMED01 - Leprechaun, LLC 2 - AS29282 47473 0.4% 15824.3 -- EMENTOR-AS Enfo Oyj 3 - AS14593 14797 0.1% 14797.0 -- BRAND-INSTITUTE - Brand Instiute, Inc. 4 - AS43299 13760 0.1% 13760.0 -- TELECONTACT-AS Telecontact Ltd. 5 - AS22492 25284 0.2%8428.0 -- 6 - AS37026 15335 0.1%7667.5 -- SALT-ASN 7 - AS302875813 0.1%5813.0 -- ALON-USA - ALON USA, LP 8 - AS401944229 0.0%4229.0 -- INHOUSE-ASSOCIATES-LC - Inhouse Associates, L.C. 9 - AS14220 18062 0.1%3612.4 -- I2A - I 20 Access 10 - AS413016410 0.1%3282.0 -- UPITT-AS - University of Pittsburgh 11 - AS30969 26091 0.2%3261.4 -- TAN-NET TransAfrica Networks 12 - AS41007 16046 0.1%3209.2 -- CTCASTANA CTC ASTANA, KZ 13 - AS21603 30105 0.2%3010.5 -- Universidad La Salle, AC 14 - AS257993001 0.0%3001.0 -- HOLMAN - Holman Enterprises 15 - AS569138614 0.3%2970.3 -- MITRE-AS-5 - The MITRE Corporation 16 - AS503325159 0.2%2795.4 -- ISW - Internet Specialties West Inc. 17 - AS10396 153901 1.3%2653.5 -- COQUI-NET - DATACOM CARIBE, INC. 18 - AS239172334 0.0%2334.0 -- BRIBIE-NET-AS-AP Bribie Island Net Multihomed, Brisbane 19 - AS222472036 0.0%2036.0 -- LETOURNEAUUNIVERSITY - LeTourneau University 20 - AS481312020 0.0%2020.0 -- VANGUARD-BG-AS Vanguard SA TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 221.134.222.0/24 62636 0.5% AS9583 -- SIFY-AS-IN Sify Limited 2 - 210.214.151.0/24 59751 0.5% AS9583 -- SIFY-AS-IN Sify Limited 3 - 221.135.80.0/24 42657 0.3% AS9583 -- SIFY-AS-IN Sify Limited 4 - 192.12.120.0/24 38228 0.3% AS5691 -- MITRE-AS-5 - The MITRE Corporation 5 - 194.126.143.0/24 35011 0.3% AS9051 -- IDM Autonomous System 6 - 77.95.144.0/2233245 0.3% AS29282 -- EMENTOR-AS Enfo Oyj 7 - 200.33.104.0/23 29597 0.2% AS21603 -- Universidad La Salle, AC 8 - 192.102.88.0/24 27198 0.2% AS6629 -- NOAA-AS - NOAA 9 - 192.35.129.0/24 26950 0.2% AS6629 -- NOAA-AS - NOAA 10 - 198.77.177.0/24 26932 0.2% AS6629 -- NOAA-AS - NOAA 11 - 12.2.46.0/24 25239 0.2% AS22492 -- 12 - 64.162.116.0/24 24935 0.2% AS5033 -- ISW - Internet Specialties West Inc. 13 - 221.128.192.0/18 23082 0.2% AS18231 -- EXATT-AS-AP IOL NETCOM LTD 14 - 8.192.154.0/2422681 0.2% AS14106 -- LEPMED01 - Leprechaun, LLC 15 - 65.44.76.0/24 18919 0.1% AS14106 -- LEPMED01 - Leprechaun, LLC 16 - 150.212.224.0/19 16291 0.1% AS4130 -- UPITT-AS - University of Pittsburgh 17 - 72.50.96.0/20 14905 0.1% AS10396 -- COQUI-NET - DATACOM CARIBE, INC. 18 - 196.42.0.0/20 14871 0.1% AS10396 -- COQUI-NET - DATACOM CARIBE, INC. 19 - 12.8.7.0/24 14797 0.1% AS14593 -- BRAND-INSTITUTE - Brand Instiute, Inc. 20
BGP Update Report
BGP Update Report Interval: 06-Oct-08 -to- 06-Nov-08 (32 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS9583 190435 1.7% 169.6 -- SIFY-AS-IN Sify Limited 2 - AS10396 163475 1.5%2069.3 -- COQUI-NET - DATACOM CARIBE, INC. 3 - AS4538 149721 1.3% 29.5 -- ERX-CERNET-BKB China Education and Research Network Center 4 - AS6389 111964 1.0% 25.4 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 5 - AS180387137 0.8% 61.8 -- ICMNET-5 - Sprint 6 - AS662981928 0.7%1260.4 -- NOAA-AS - NOAA 7 - AS20115 67980 0.6% 29.3 -- CHARTER-NET-HKY-NC - Charter Communications 8 - AS23126 65226 0.6% 282.4 -- CENTURYTEL-SOLUTIONS-LLC - CenturyTel Solutions, LLC 9 - AS815159659 0.5% 41.7 -- Uninet S.A. de C.V. 10 - AS905157707 0.5% 358.4 -- IDM Autonomous System 11 - AS629855678 0.5% 26.5 -- ASN-CXA-PH-6298-CBS - Cox Communications Inc. 12 - AS569151713 0.5%3977.9 -- MITRE-AS-5 - The MITRE Corporation 13 - AS238647914 0.4% 29.0 -- INS-AS - ATT Data Communications Services 14 - AS764346600 0.4% 26.2 -- VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) 15 - AS209 43031 0.4% 13.6 -- ASN-QWEST - Qwest Communications Corporation 16 - AS645842281 0.4% 103.4 -- Telgua 17 - AS10986 41094 0.4% 461.7 -- Intermedia Comunicaciones S.A. 18 - AS704640490 0.4% 68.9 -- UUNET-CUSTOMER - MCI Communications Services, Inc. d/b/a Verizon Business 19 - AS17974 40393 0.4% 49.7 -- TELKOMNET-AS2-AP PT Telekomunikasi Indonesia 20 - AS22492 37053 0.3% 12351.0 -- TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS14593 26113 0.2% 26113.0 -- BRAND-INSTITUTE - Brand Instiute, Inc. 2 - AS43299 20671 0.2% 20671.0 -- TELECONTACT-AS Telecontact Ltd. 3 - AS22492 37053 0.3% 12351.0 -- 4 - AS37026 21597 0.2% 10798.5 -- SALT-ASN 5 - AS14106 19463 0.2%9731.5 -- LEPMED01 - Leprechaun, LLC 6 - AS29282 25136 0.2%8378.7 -- EMENTOR-AS Enfo Oyj 7 - AS302875351 0.1%5351.0 -- ALON-USA - ALON USA, LP 8 - AS401944287 0.0%4287.0 -- INHOUSE-ASSOCIATES-LC - Inhouse Associates, L.C. 9 - AS569151713 0.5%3977.9 -- MITRE-AS-5 - The MITRE Corporation 10 - AS21603 36731 0.3%3673.1 -- Universidad La Salle, AC 11 - AS14220 18225 0.2%3645.0 -- I2A - I 20 Access 12 - AS413016403 0.1%3280.6 -- UPITT-AS - University of Pittsburgh 13 - AS30969 26216 0.2%3277.0 -- TAN-NET TransAfrica Networks 14 - AS41007 15516 0.1%3103.2 -- CTCASTANA CTC ASTANA, KZ 15 - AS257992787 0.0%2787.0 -- HOLMAN - Holman Enterprises 16 - AS23082 13759 0.1%2751.8 -- MPHI - Michigan Public Health Institute 17 - AS299102505 0.0%2505.0 -- IACP - INTL. ASSN OF CHIEF OF POLICEI 18 - AS503321839 0.2%2426.6 -- ISW - Internet Specialties West Inc. 19 - AS239172383 0.0%2383.0 -- BRIBIE-NET-AS-AP Bribie Island Net Multihomed, Brisbane 20 - AS222472115 0.0%2115.0 -- LETOURNEAUUNIVERSITY - LeTourneau University TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 221.134.222.0/24 62667 0.5% AS9583 -- SIFY-AS-IN Sify Limited 2 - 210.214.151.0/24 60146 0.5% AS9583 -- SIFY-AS-IN Sify Limited 3 - 192.12.120.0/24 51378 0.4% AS5691 -- MITRE-AS-5 - The MITRE Corporation 4 - 221.135.80.0/24 44512 0.4% AS9583 -- SIFY-AS-IN Sify Limited 5 - 194.126.143.0/24 44323 0.4% AS9051 -- IDM Autonomous System 6 - 12.2.46.0/24 37016 0.3% AS22492 -- 7 - 200.33.104.0/23 36141 0.3% AS21603 -- Universidad La Salle, AC 8 - 192.102.88.0/24 27029 0.2% AS6629 -- NOAA-AS - NOAA 9 - 198.77.177.0/24 26874 0.2% AS6629 -- NOAA-AS - NOAA 10 - 192.35.129.0/24 26796 0.2% AS6629 -- NOAA-AS - NOAA 11 - 12.8.7.0/24 26113 0.2% AS14593 -- BRAND-INSTITUTE - Brand Instiute, Inc. 12 - 221.128.192.0/18 24436 0.2% AS18231 -- EXATT-AS-AP IOL NETCOM LTD 13 - 64.162.116.0/24 21615 0.2% AS5033 -- ISW - Internet Specialties West Inc. 14 - 78.40.24.0/21 20671 0.2% AS43299 -- TELECONTACT-AS Telecontact Ltd. 15 - 196.42.0.0/20 19289 0.2% AS10396 -- COQUI-NET - DATACOM CARIBE, INC. 16 - 72.50.96.0/20 19216 0.2% AS10396 -- COQUI-NET - DATACOM CARIBE, INC. 17 - 77.95.144.0/2217544 0.1% AS29282 -- EMENTOR-AS Enfo Oyj 18 - 150.212.224.0/19 16299 0.1% AS4130 -- UPITT-AS - University of Pittsburgh 19 - 89.4.131.0/24
The Cidr Report
This report has been generated at Fri Nov 7 21:37:28 2008 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
31-10-08286084 173833
01-11-08285919 173798
02-11-08286141 173214
03-11-08286324 173843
04-11-08286582 175158
05-11-08287251 176072
06-11-08287660 176586
07-11-08287743 177356
AS Summary
29924 Number of ASes in routing system
12670 Number of ASes announcing only one prefix
5055 Largest number of prefixes announced by an AS
AS4538 : ERX-CERNET-BKB China Education and Research Network
Center
88277504 Largest address span announced by an AS (/32s)
AS721 : DISA-ASNBLK - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 07Nov08 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 287934 177341 11059338.4% All ASes
AS4538 5055 873 418282.7% ERX-CERNET-BKB China Education
and Research Network Center
AS6389 4365 358 400791.8% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS209 3042 1349 169355.7% ASN-QWEST - Qwest
Communications Corporation
AS1785 1693 212 148187.5% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS6298 2080 697 138366.5% ASN-CXA-PH-6298-CBS - Cox
Communications Inc.
AS4755 1518 290 122880.9% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS17488 1410 296 111479.0% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS4323 1572 557 101564.6% TWTC - tw telecom holdings,
inc.
AS6478 1650 721 92956.3% ATT-INTERNET3 - ATT WorldNet
Services
AS22773 1005 94 91190.6% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS8151 1402 566 83659.6% Uninet S.A. de C.V.
AS11492 1211 468 74361.4% CABLEONE - CABLE ONE, INC.
AS19262 931 244 68773.8% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS2386 1596 922 67442.2% INS-AS - ATT Data
Communications Services
AS18566 1059 426 63359.8% COVAD - Covad Communications
Co.
AS9498 696 118 57883.0% BBIL-AP BHARTI Airtel Ltd.
AS18101 784 223 56171.6% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS855596 124 47279.2% CANET-ASN-4 - Bell Aliant
AS7545 613 141 47277.0% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS4808 630 159 47174.8% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS24560 605 158 44773.9% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS17676 522 79 44384.9% GIGAINFRA BB TECHNOLOGY Corp.
AS9443 526 85 44183.8% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS22047 567 128 43977.4% VTR BANDA ANCHA S.A.
AS7018 1439 1003 43630.3% ATT-INTERNET4 - ATT WorldNet
Services
AS4134 880 464 41647.3% CHINANET-BACKBONE
No.31,Jin-rong Street
AS4668 688 275 41360.0% LGNET-AS-KR LG CNS
AS7011 923 515 40844.2% FRONTIER-AND-CITIZENS -
Frontier Communications of
BGP Update Report
BGP Update Report Interval: 29-Sep-08 -to- 30-Oct-08 (32 days) Observation Point: BGP Peering with AS2.0 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS9583 194959 1.8% 174.2 -- SIFY-AS-IN Sify Limited 2 - AS4538 117869 1.1% 23.2 -- ERX-CERNET-BKB China Education and Research Network Center 3 - AS638996967 0.9% 22.0 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 4 - AS180393586 0.9% 67.4 -- ICMNET-5 - Sprint 5 - AS662971416 0.7%1098.7 -- NOAA-AS - NOAA 6 - AS20115 67120 0.6% 28.7 -- CHARTER-NET-HKY-NC - Charter Communications 7 - AS815165720 0.6% 27.4 -- Uninet S.A. de C.V. 8 - AS569164633 0.6%4971.8 -- MITRE-AS-5 - The MITRE Corporation 9 - AS905161506 0.6% 384.4 -- IDM Autonomous System 10 - AS10396 50322 0.5% 653.5 -- COQUI-NET - DATACOM CARIBE, INC. 11 - AS704648974 0.5% 82.9 -- UUNET-CUSTOMER - MCI Communications Services, Inc. d/b/a Verizon Business 12 - AS238645822 0.4% 27.8 -- INS-AS - ATT Data Communications Services 13 - AS22492 44217 0.4% 14739.0 -- 14 - AS20255 43679 0.4%1409.0 -- Tecnowind S.A. 15 - AS209 43308 0.4% 13.6 -- ASN-QWEST - Qwest Communications Corporation 16 - AS645843061 0.4% 106.9 -- Telgua 17 - AS10986 42338 0.4% 475.7 -- Intermedia Comunicaciones S.A. 18 - AS764341356 0.4% 23.8 -- VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) 19 - AS17974 40394 0.4% 49.6 -- TELKOMNET-AS2-AP PT Telekomunikasi Indonesia 20 - AS34116 39164 0.4% 391.6 -- CYBER-AS Cyber Net AS TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS14593 37576 0.3% 37576.0 -- BRAND-INSTITUTE - Brand Instiute, Inc. 2 - AS43299 21481 0.2% 21481.0 -- TELECONTACT-AS Telecontact Ltd. 3 - AS22492 44217 0.4% 14739.0 -- 4 - AS37026 21593 0.2% 10796.5 -- SALT-ASN 5 - AS569164633 0.6%4971.8 -- MITRE-AS-5 - The MITRE Corporation 6 - AS302874469 0.0%4469.0 -- ALON-USA - ALON USA, LP 7 - AS21603 36845 0.3%3684.5 -- Universidad La Salle, AC 8 - AS23082 18245 0.2%3649.0 -- MPHI - Michigan Public Health Institute 9 - AS30969 29150 0.3%3643.8 -- TAN-NET TransAfrica Networks 10 - AS299103501 0.0%3501.0 -- IACP - INTL. ASSN OF CHIEF OF POLICEI 11 - AS41007 15591 0.1%3118.2 -- CTCASTANA CTC ASTANA, KZ 12 - AS413015251 0.1%3050.2 -- UPITT-AS - University of Pittsburgh 13 - AS8266 2934 0.0%2934.0 -- NEXUSTEL Nexus Telecommunications 14 - AS381802450 0.0%2450.0 -- ETPI-IDS-JOLLIBEE-AS-AP 6/Fth floor JOLLIBEE PLAZA, Emerald Ave. Ortigas Center Pasig City. 15 - AS503320329 0.2%2258.8 -- ISW - Internet Specialties West Inc. 16 - AS239172238 0.0%2238.0 -- BRIBIE-NET-AS-AP Bribie Island Net Multihomed, Brisbane 17 - AS441942078 0.0%2078.0 -- FREIFUNK-BERLIN-AS Freifunk Berlin 18 - AS257991998 0.0%1998.0 -- HOLMAN - Holman Enterprises 19 - AS391051888 0.0%1888.0 -- CLASS-AS SC Class Computers And Service SRL 20 - AS425211724 0.0%1724.0 -- COFUND-AS Fundacja Fundusz Wspolpracy TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 192.12.120.0/24 64364 0.6% AS5691 -- MITRE-AS-5 - The MITRE Corporation 2 - 221.134.222.0/24 62651 0.6% AS9583 -- SIFY-AS-IN Sify Limited 3 - 210.214.151.0/24 60986 0.6% AS9583 -- SIFY-AS-IN Sify Limited 4 - 221.135.80.0/24 46255 0.4% AS9583 -- SIFY-AS-IN Sify Limited 5 - 194.126.143.0/24 44980 0.4% AS9051 -- IDM Autonomous System 6 - 12.2.46.0/24 44187 0.4% AS22492 -- 7 - 12.8.7.0/24 37576 0.3% AS14593 -- BRAND-INSTITUTE - Brand Instiute, Inc. 8 - 200.33.104.0/23 36176 0.3% AS21603 -- Universidad La Salle, AC 9 - 221.128.192.0/18 25369 0.2% AS18231 -- EXATT-AS-AP IOL NETCOM LTD 10 - 192.102.88.0/24 23637 0.2% AS6629 -- NOAA-AS - NOAA 11 - 196.42.0.0/20 23578 0.2% AS10396 -- COQUI-NET - DATACOM CARIBE, INC. 12 - 198.77.177.0/24 23532 0.2% AS6629 -- NOAA-AS - NOAA 13 - 72.50.96.0/20 23493 0.2% AS10396 -- COQUI-NET - DATACOM CARIBE, INC. 14 - 192.35.129.0/24 23460 0.2% AS6629 -- NOAA-AS - NOAA 15 - 78.40.24.0/21 21481 0.2% AS43299 -- TELECONTACT-AS Telecontact Ltd. 16 - 200.108.200.0/24 21443 0.2% AS20255 -- Tecnowind S.A. 17 - 200.108.220.0/24 21434 0.2% AS20255 -- Tecnowind S.A. 18 - 64.162.116.0/24 20217 0.2% AS5033 -- ISW - Internet Specialties West Inc. 19 - 89.4.131.0/24 15291
BGP Update Report
BGP Update Report Interval: 22-Sep-08 -to- 23-Oct-08 (32 days) Observation Point: BGP Peering with AS2.0 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS9583 207109 2.2% 182.8 -- SIFY-AS-IN Sify Limited 2 - AS180397805 1.1% 70.7 -- ICMNET-5 - Sprint 3 - AS453880573 0.9% 15.9 -- ERX-CERNET-BKB China Education and Research Network Center 4 - AS569177747 0.8%5980.5 -- MITRE-AS-5 - The MITRE Corporation 5 - AS638971848 0.8% 16.6 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 6 - AS20255 71252 0.8%2298.5 -- Tecnowind S.A. 7 - AS815166487 0.7% 27.7 -- Uninet S.A. de C.V. 8 - AS905160816 0.7% 382.5 -- IDM Autonomous System 9 - AS20115 54861 0.6% 23.4 -- CHARTER-NET-HKY-NC - Charter Communications 10 - AS662954763 0.6% 842.5 -- NOAA-AS - NOAA 11 - AS704649270 0.5% 83.7 -- UUNET-CUSTOMER - MCI Communications Services, Inc. d/b/a Verizon Business 12 - AS14593 49149 0.5% 49149.0 -- BRAND-INSTITUTE - Brand Instiute, Inc. 13 - AS30890 48780 0.5% 49.8 -- EVOLVA Evolva Telecom 14 - AS10396 47946 0.5% 622.7 -- COQUI-NET - DATACOM CARIBE, INC. 15 - AS10986 44612 0.5% 501.3 -- Intermedia Comunicaciones S.A. 16 - AS427443772 0.5% 643.7 -- ERX-AU-NET Assumption University 17 - AS645841026 0.5% 99.8 -- Telgua 18 - AS17974 39169 0.4% 48.1 -- TELKOMNET-AS2-AP PT Telekomunikasi Indonesia 19 - AS22492 37376 0.4% 12458.7 -- 20 - AS14846 36266 0.4% 824.2 -- CGNOGE - NBC Internet TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS14593 49149 0.5% 49149.0 -- BRAND-INSTITUTE - Brand Instiute, Inc. 2 - AS43299 16563 0.2% 16563.0 -- TELECONTACT-AS Telecontact Ltd. 3 - AS22492 37376 0.4% 12458.7 -- 4 - AS37026 17793 0.2%8896.5 -- SALT-ASN 5 - AS327617146 0.1%7146.0 -- WASSE-NYC - Wasserstein Co. 6 - AS569177747 0.8%5980.5 -- MITRE-AS-5 - The MITRE Corporation 7 - AS8266 5752 0.1%5752.0 -- NEXUSTEL Nexus Telecommunications 8 - AS299105128 0.1%5128.0 -- IACP - INTL. ASSN OF CHIEF OF POLICEI 9 - AS4184 9665 0.1%4832.5 -- STORTEK-WHQ - Storage Technology Corporation 10 - AS23082 20143 0.2%4028.6 -- MPHI - Michigan Public Health Institute 11 - AS381803941 0.0%3941.0 -- ETPI-IDS-JOLLIBEE-AS-AP 6/Fth floor JOLLIBEE PLAZA, Emerald Ave. Ortigas Center Pasig City. 12 - AS30969 30175 0.3%3771.9 -- TAN-NET TransAfrica Networks 13 - AS441943262 0.0%3262.0 -- FREIFUNK-BERLIN-AS Freifunk Berlin 14 - AS21603 31590 0.3%3159.0 -- Universidad La Salle, AC 15 - AS41007 14765 0.2%2953.0 -- CTCASTANA CTC ASTANA, KZ 16 - AS302872385 0.0%2385.0 -- ALON-USA - ALON USA, LP 17 - AS413011719 0.1%2343.8 -- UPITT-AS - University of Pittsburgh 18 - AS20255 71252 0.8%2298.5 -- Tecnowind S.A. 19 - AS239172290 0.0%2290.0 -- BRIBIE-NET-AS-AP Bribie Island Net Multihomed, Brisbane 20 - AS503320017 0.2%2224.1 -- ISW - Internet Specialties West Inc. TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 192.12.120.0/24 77609 0.8% AS5691 -- MITRE-AS-5 - The MITRE Corporation 2 - 210.214.151.0/24 62487 0.6% AS9583 -- SIFY-AS-IN Sify Limited 3 - 221.134.222.0/24 61543 0.6% AS9583 -- SIFY-AS-IN Sify Limited 4 - 12.8.7.0/24 49149 0.5% AS14593 -- BRAND-INSTITUTE - Brand Instiute, Inc. 5 - 221.135.80.0/24 47921 0.5% AS9583 -- SIFY-AS-IN Sify Limited 6 - 194.126.143.0/24 45711 0.5% AS9051 -- IDM Autonomous System 7 - 12.2.46.0/24 37326 0.4% AS22492 -- 8 - 200.108.200.0/24 35379 0.4% AS20255 -- Tecnowind S.A. 9 - 200.108.220.0/24 35368 0.4% AS20255 -- Tecnowind S.A. 10 - 200.33.104.0/23 31161 0.3% AS21603 -- Universidad La Salle, AC 11 - 221.128.192.0/18 26379 0.3% AS18231 -- EXATT-AS-AP IOL NETCOM LTD 12 - 196.42.0.0/20 23209 0.2% AS10396 -- COQUI-NET - DATACOM CARIBE, INC. 13 - 72.50.96.0/20 23108 0.2% AS10396 -- COQUI-NET - DATACOM CARIBE, INC. 14 - 64.162.116.0/24 19953 0.2% AS5033 -- ISW - Internet Specialties West Inc. 15 - 192.102.88.0/24 17999 0.2% AS6629 -- NOAA-AS - NOAA 16 - 192.35.129.0/24 17871 0.2% AS6629 -- NOAA-AS - NOAA 17 - 198.77.177.0/24 17852 0.2% AS6629 -- NOAA-AS - NOAA 18 - 78.40.24.0/21 16563 0.2% AS43299 -- TELECONTACT-AS Telecontact Ltd. 19 - 89.4.131.0/24 16095 0.2% AS24731 -- ASN-NESMA National Engineering Services and Marketing
The Cidr Report
This report has been generated at Fri Oct 24 21:27:53 2008 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
17-10-08284383 173876
18-10-08284628 172567
19-10-08284858 172849
20-10-08284886 173311
21-10-08285389 173535
22-10-08285116 174027
23-10-08285363 173151
24-10-08285588 174323
AS Summary
29758 Number of ASes in routing system
12598 Number of ASes announcing only one prefix
5046 Largest number of prefixes announced by an AS
AS4538 : ERX-CERNET-BKB China Education and Research Network
Center
88343552 Largest address span announced by an AS (/32s)
AS721 : DISA-ASNBLK - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 24Oct08 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 286259 174082 11217739.2% All ASes
AS4538 5046 872 417482.7% ERX-CERNET-BKB China Education
and Research Network Center
AS6389 4360 353 400791.9% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS209 3062 1369 169355.3% ASN-QWEST - Qwest
Communications Corporation
AS6298 2020 715 130564.6% ASN-CXA-PH-6298-CBS - Cox
Communications Inc.
AS4755 1499 262 123782.5% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS1785 1698 557 114167.2% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS17488 1392 303 108978.2% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS4323 1558 481 107769.1% TWTC - tw telecom holdings,
inc.
AS22773 999 70 92993.0% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS8151 1396 542 85461.2% Uninet S.A. de C.V.
AS19262 954 199 75579.1% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS11492 1212 464 74861.7% CABLEONE - CABLE ONE
AS2386 1615 934 68142.2% INS-AS - ATT Data
Communications Services
AS6478 1323 660 66350.1% ATT-INTERNET3 - ATT WorldNet
Services
AS9498 692 69 62390.0% BBIL-AP BHARTI Airtel Ltd.
AS3356 1039 469 57054.9% LEVEL3 Level 3 Communications
AS18566 1059 492 56753.5% COVAD - Covad Communications
Co.
AS18101 783 228 55570.9% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS4766 922 417 50554.8% KIXS-AS-KR Korea Telecom
AS4808 631 157 47475.1% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS20115 1955 1484 47124.1% CHARTER-NET-HKY-NC - Charter
Communications
AS855590 142 44875.9% CANET-ASN-4 - Bell Aliant
AS7011 918 475 44348.3% FRONTIER-AND-CITIZENS -
Frontier Communications of
America, Inc.
AS17676 522 79 44384.9% GIGAINFRA BB TECHNOLOGY Corp.
AS7545 611 169 44272.3% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS9443 523 82 44184.3% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS24560 597 158 43973.5% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS22047 566 129 43777.2% VTR BANDA ANCHA S.A.
AS7018
BGP Update Report
BGP Update Report Interval: 15-Sep-08 -to- 16-Oct-08 (32 days) Observation Point: BGP Peering with AS2.0 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS9583 216771 3.0% 179.6 -- SIFY-AS-IN Sify Limited 2 - AS1803 101971 1.4% 74.2 -- ICMNET-5 - Sprint 3 - AS20255 79452 1.1%2563.0 -- Tecnowind S.A. 4 - AS569178852 1.1%6065.5 -- MITRE-AS-5 - The MITRE Corporation 5 - AS815161504 0.8% 25.4 -- Uninet S.A. de C.V. 6 - AS905160317 0.8% 384.2 -- IDM Autonomous System 7 - AS10986 53349 0.7% 599.4 -- Intermedia Comunicaciones S.A. 8 - AS14593 52344 0.7% 52344.0 -- BRAND-INSTITUTE - Brand Instiute, Inc. 9 - AS10396 48019 0.7% 631.8 -- COQUI-NET - DATACOM CARIBE, INC. 10 - AS30890 47599 0.7% 45.3 -- EVOLVA Evolva Telecom 11 - AS427443374 0.6% 637.9 -- ERX-AU-NET Assumption University 12 - AS20115 40531 0.6% 17.7 -- CHARTER-NET-HKY-NC - Charter Communications 13 - AS645839406 0.5% 110.1 -- Telgua 14 - AS453839163 0.5% 7.8 -- ERX-CERNET-BKB China Education and Research Network Center 15 - AS704637553 0.5% 129.5 -- UUNET-CUSTOMER - MCI Communications Services, Inc. d/b/a Verizon Business 16 - AS14846 37505 0.5% 852.4 -- CGNOGE - NBC Internet 17 - AS662936602 0.5% 563.1 -- NOAA-AS - NOAA 18 - AS209 36437 0.5% 11.5 -- ASN-QWEST - Qwest Communications Corporation 19 - AS17974 35134 0.5% 43.1 -- TELKOMNET-AS2-AP PT Telekomunikasi Indonesia 20 - AS129532359 0.5% 829.7 -- BGNOGE - General Electric Company TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS14593 52344 0.7% 52344.0 -- BRAND-INSTITUTE - Brand Instiute, Inc. 2 - AS418427084 0.4% 13542.0 -- STORTEK-WHQ - Storage Technology Corporation 3 - AS32761 12590 0.2% 12590.0 -- WASSE-NYC - Wasserstein Co. 4 - AS826610744 0.1% 10744.0 -- NEXUSTEL Nexus Telecommunications 5 - AS43299 10153 0.1% 10153.0 -- TELECONTACT-AS Telecontact Ltd. 6 - AS22492 25731 0.4%8577.0 -- 7 - AS299106260 0.1%6260.0 -- IACP - INTL. ASSN OF CHIEF OF POLICEI 8 - AS569178852 1.1%6065.5 -- MITRE-AS-5 - The MITRE Corporation 9 - AS381805561 0.1%5561.0 -- ETPI-IDS-JOLLIBEE-AS-AP 6/Fth floor JOLLIBEE PLAZA, Emerald Ave. Ortigas Center Pasig City. 10 - AS37026 10428 0.1%5214.0 -- SALT-ASN 11 - AS11971 32063 0.4%4580.4 -- PFIZERNET-GROTON - PFIZER INC. 12 - AS30969 31919 0.4%3989.9 -- TAN-NET TransAfrica Networks 13 - AS441943975 0.1%3975.0 -- FREIFUNK-BERLIN-AS Freifunk Berlin 14 - AS23082 19707 0.3%3941.4 -- MPHI - Michigan Public Health Institute 15 - AS4557 6434 0.1%3217.0 -- EP0-BLK-ASNBLOCK-7 - EP.NET, LLC. 16 - AS20255 79452 1.1%2563.0 -- Tecnowind S.A. 17 - AS239172353 0.0%2353.0 -- BRIBIE-NET-AS-AP Bribie Island Net Multihomed, Brisbane 18 - AS41007 11206 0.1%2241.2 -- CTCASTANA CTC ASTANA, KZ 19 - AS974711654 0.2%1942.3 -- EZINTERNET-AS-AP EZInternet Pty Ltd 20 - AS391051932 0.0%1932.0 -- CLASS-AS SC Class Computers And Service SRL TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 192.12.120.0/24 78821 1.0% AS5691 -- MITRE-AS-5 - The MITRE Corporation 2 - 210.214.151.0/24 62691 0.8% AS9583 -- SIFY-AS-IN Sify Limited 3 - 221.134.222.0/24 60455 0.8% AS9583 -- SIFY-AS-IN Sify Limited 4 - 12.8.7.0/24 52344 0.7% AS14593 -- BRAND-INSTITUTE - Brand Instiute, Inc. 5 - 221.135.80.0/24 47794 0.6% AS9583 -- SIFY-AS-IN Sify Limited 6 - 194.126.143.0/24 46265 0.6% AS9051 -- IDM Autonomous System 7 - 200.108.200.0/24 40038 0.5% AS20255 -- Tecnowind S.A. 8 - 200.108.220.0/24 39043 0.5% AS20255 -- Tecnowind S.A. 9 - 12.18.36.0/24 31769 0.4% AS11971 -- PFIZERNET-GROTON - PFIZER INC. 10 - 221.128.192.0/18 26956 0.3% AS18231 -- EXATT-AS-AP IOL NETCOM LTD 11 - 12.2.46.0/24 25677 0.3% AS22492 -- 12 - 210.210.112.0/24 23429 0.3% AS9583 -- SIFY-AS-IN Sify Limited 13 - 196.42.0.0/20 23427 0.3% AS10396 -- COQUI-NET - DATACOM CARIBE, INC. 14 - 72.50.96.0/20 23343 0.3% AS10396 -- COQUI-NET - DATACOM CARIBE, INC. 15 - 89.4.131.0/24 15849 0.2% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 16 - 196.27.108.0/22 15839 0.2% AS30969 -- TAN-NET TransAfrica Networks 17 - 196.27.104.0/21 15819 0.2% AS30969 -- TAN-NET TransAfrica Networks 18 - 200.33.104.0/23 15804 0.2%
The Cidr Report
This report has been generated at Fri Oct 17 21:29:25 2008 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
10-10-08283780 174334
11-10-08284059 174429
12-10-08284056 174623
13-10-08284154 174546
14-10-08283998 173699
15-10-08284303 172344
16-10-08284573 173316
17-10-08284383 173765
AS Summary
29678 Number of ASes in routing system
12571 Number of ASes announcing only one prefix
5049 Largest number of prefixes announced by an AS
AS4538 : ERX-CERNET-BKB China Education and Research Network
Center
88278016 Largest address span announced by an AS (/32s)
AS721 : DISA-ASNBLK - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 17Oct08 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 284300 173745 11055538.9% All ASes
AS4538 5049 879 417082.6% ERX-CERNET-BKB China Education
and Research Network Center
AS6389 4304 351 395391.8% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS209 3078 1370 170855.5% ASN-QWEST - Qwest
Communications Corporation
AS6298 2011 771 124061.7% ASN-CXA-PH-6298-CBS - Cox
Communications Inc.
AS4755 1489 254 123582.9% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS1785 1680 598 108264.4% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS17488 1388 307 108177.9% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS4323 1548 483 106568.8% TWTC - tw telecom holdings,
inc.
AS22773 996 70 92693.0% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS8151 1412 541 87161.7% Uninet S.A. de C.V.
AS11492 1212 464 74861.7% CABLEONE - CABLE ONE
AS19262 951 224 72776.4% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS2386 1590 915 67542.5% INS-AS - ATT Data
Communications Services
AS6478 1318 657 66150.2% ATT-INTERNET3 - ATT WorldNet
Services
AS9498 688 70 61889.8% BBIL-AP BHARTI Airtel Ltd.
AS18101 781 194 58775.2% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS3356 1034 462 57255.3% LEVEL3 Level 3 Communications
AS18566 1059 496 56353.2% COVAD - Covad Communications
Co.
AS4766 918 431 48753.1% KIXS-AS-KR Korea Telecom
AS4808 631 155 47675.4% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS17676 522 62 46088.1% GIGAINFRA BB TECHNOLOGY Corp.
AS20115 1905 1452 45323.8% CHARTER-NET-HKY-NC - Charter
Communications
AS9443 528 81 44784.7% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS855587 141 44676.0% CANET-ASN-4 - Bell Aliant
AS4134 845 403 44252.3% CHINANET-BACKBONE
No.31,Jin-rong Street
AS7545 596 155 44174.0% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS22047 564 127 43777.5% VTR BANDA ANCHA S.A.
AS24560 595 158 43773.4% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS7018 1436 1003 43330.2% ATT-INTERNET4 - ATT WorldNet
The Cidr Report
This report has been generated at Fri Oct 10 21:18:20 2008 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
03-10-08282818 172077
04-10-08283038 172781
05-10-08283068 172691
06-10-08283255 172580
07-10-08283354 171945
08-10-08281623 173006
09-10-08283615 173718
10-10-08283780 174293
AS Summary
29644 Number of ASes in routing system
12561 Number of ASes announcing only one prefix
5035 Largest number of prefixes announced by an AS
AS4538 : ERX-CERNET-BKB China Education and Research Network
Center
88349184 Largest address span announced by an AS (/32s)
AS721 : DISA-ASNBLK - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 10Oct08 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 284095 174352 10974338.6% All ASes
AS4538 5035 884 415182.4% ERX-CERNET-BKB China Education
and Research Network Center
AS6389 4299 351 394891.8% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS209 2941 1335 160654.6% ASN-QWEST - Qwest
Communications Corporation
AS1785 1672 175 149789.5% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS6298 2010 776 123461.4% ASN-CXA-PH-6298-CBS - Cox
Communications Inc.
AS4755 1478 280 119881.1% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS17488 1420 311 110978.1% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS4323 1551 659 89257.5% TWTC - tw telecom holdings,
inc.
AS8151 1417 553 86461.0% Uninet S.A. de C.V.
AS11492 1216 449 76763.1% CABLEONE - CABLE ONE
AS19262 948 201 74778.8% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS18566 1062 316 74670.2% COVAD - Covad Communications
Co.
AS18101 781 102 67986.9% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS6478 1310 662 64849.5% ATT-INTERNET3 - ATT WorldNet
Services
AS2386 1563 916 64741.4% INS-AS - ATT Data
Communications Services
AS9498 686 71 61589.7% BBIL-AP BHARTI Airtel Ltd.
AS22773 996 489 50750.9% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS3356 1034 548 48647.0% LEVEL3 Level 3 Communications
AS855589 103 48682.5% CANET-ASN-4 - Bell Aliant
AS4766 923 442 48152.1% KIXS-AS-KR Korea Telecom
AS4808 616 145 47176.5% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS20115 1878 1408 47025.0% CHARTER-NET-HKY-NC - Charter
Communications
AS17676 524 63 46188.0% GIGAINFRA BB TECHNOLOGY Corp.
AS9443 528 81 44784.7% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS7545 592 154 43874.0% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS22047 564 128 43677.3% VTR BANDA ANCHA S.A.
AS24560 593 157 43673.5% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS7018 1435 1004 43130.0% ATT-INTERNET4 - ATT WorldNet
Services
AS4134 843 415 42850.8% CHINANET-BACKBONE
BGP Update Report
BGP Update Report Interval: 08-Sep-08 -to- 09-Oct-08 (32 days) Observation Point: BGP Peering with AS2.0 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS9583 238199 3.0% 195.7 -- SIFY-AS-IN Sify Limited 2 - AS1803 117148 1.5% 85.5 -- ICMNET-5 - Sprint 3 - AS20255 79393 1.0%2561.1 -- Tecnowind S.A. 4 - AS569178741 1.0%6057.0 -- MITRE-AS-5 - The MITRE Corporation 5 - AS453872727 0.9% 14.4 -- ERX-CERNET-BKB China Education and Research Network Center 6 - AS815161709 0.8% 25.4 -- Uninet S.A. de C.V. 7 - AS905161564 0.8% 389.6 -- IDM Autonomous System 8 - AS10986 53459 0.7% 614.5 -- Intermedia Comunicaciones S.A. 9 - AS14593 52003 0.7% 52003.0 -- BRAND-INSTITUTE - Brand Instiute, Inc. 10 - AS30890 48547 0.6% 36.1 -- EVOLVA Evolva Telecom 11 - AS10396 48464 0.6% 850.2 -- COQUI-NET - DATACOM CARIBE, INC. 12 - AS209 44861 0.6% 14.9 -- ASN-QWEST - Qwest Communications Corporation 13 - AS427443711 0.6% 642.8 -- ERX-AU-NET Assumption University 14 - AS11971 43380 0.6%6197.1 -- PFIZERNET-GROTON - PFIZER INC. 15 - AS638941956 0.5% 9.7 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 16 - AS418440597 0.5% 20298.5 -- STORTEK-WHQ - Storage Technology Corporation 17 - AS17974 37938 0.5% 46.5 -- TELKOMNET-AS2-AP PT Telekomunikasi Indonesia 18 - AS645837076 0.5% 103.9 -- Telgua 19 - AS14846 36603 0.5% 831.9 -- CGNOGE - NBC Internet 20 - AS704636113 0.5% 124.1 -- UUNET-CUSTOMER - MCI Communications Services, Inc. d/b/a Verizon Business TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS14593 52003 0.7% 52003.0 -- BRAND-INSTITUTE - Brand Instiute, Inc. 2 - AS418440597 0.5% 20298.5 -- STORTEK-WHQ - Storage Technology Corporation 3 - AS826617640 0.2% 17640.0 -- NEXUSTEL Nexus Telecommunications 4 - AS381806358 0.1%6358.0 -- ETPI-IDS-JOLLIBEE-AS-AP 6/Fth floor JOLLIBEE PLAZA, Emerald Ave. Ortigas Center Pasig City. 5 - AS11971 43380 0.6%6197.1 -- PFIZERNET-GROTON - PFIZER INC. 6 - AS569178741 1.0%6057.0 -- MITRE-AS-5 - The MITRE Corporation 7 - AS299105975 0.1%5975.0 -- IACP - INTL. ASSN OF CHIEF OF POLICEI 8 - AS22492 13879 0.2%4626.3 -- 9 - AS432994399 0.1%4399.0 -- TELECONTACT-AS Telecontact Ltd. 10 - AS4557 7873 0.1%3936.5 -- EP0-BLK-ASNBLOCK-7 - EP.NET, LLC. 11 - AS23082 18868 0.2%3773.6 -- MPHI - Michigan Public Health Institute 12 - AS30969 29091 0.4%3636.4 -- TAN-NET TransAfrica Networks 13 - AS441942887 0.0%2887.0 -- FREIFUNK-BERLIN-AS Freifunk Berlin 14 - AS20255 79393 1.0%2561.1 -- Tecnowind S.A. 15 - AS239172341 0.0%2341.0 -- BRIBIE-NET-AS-AP Bribie Island Net Multihomed, Brisbane 16 - AS391051929 0.0%1929.0 -- CLASS-AS SC Class Computers And Service SRL 17 - AS425211539 0.0%1539.0 -- COFUND-AS Fundacja Fundusz Wspolpracy 18 - AS410077567 0.1%1513.4 -- CTCASTANA CTC ASTANA, KZ 19 - AS102215672 0.1%1418.0 -- HEWLETT-PACKARD Multi-homed connections to multiple ISP's providing 20 - AS974711087 0.1%1385.9 -- EZINTERNET-AS-AP EZInternet Pty Ltd TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 192.12.120.0/24 78689 0.9% AS5691 -- MITRE-AS-5 - The MITRE Corporation 2 - 210.214.151.0/24 62057 0.7% AS9583 -- SIFY-AS-IN Sify Limited 3 - 221.134.222.0/24 58932 0.7% AS9583 -- SIFY-AS-IN Sify Limited 4 - 12.8.7.0/24 52003 0.6% AS14593 -- BRAND-INSTITUTE - Brand Instiute, Inc. 5 - 221.135.80.0/24 47252 0.6% AS9583 -- SIFY-AS-IN Sify Limited 6 - 194.126.143.0/24 46733 0.6% AS9051 -- IDM Autonomous System 7 - 12.18.36.0/24 43156 0.5% AS11971 -- PFIZERNET-GROTON - PFIZER INC. 8 - 200.108.200.0/24 40036 0.5% AS20255 -- Tecnowind S.A. 9 - 200.108.220.0/24 39041 0.5% AS20255 -- Tecnowind S.A. 10 - 210.210.112.0/24 33861 0.4% AS9583 -- SIFY-AS-IN Sify Limited 11 - 221.128.192.0/18 27607 0.3% AS18231 -- EXATT-AS-AP IOL NETCOM LTD 12 - 196.42.0.0/20 23583 0.3% AS10396 -- COQUI-NET - DATACOM CARIBE, INC. 13 - 72.50.96.0/20 23578 0.3% AS10396 -- COQUI-NET - DATACOM CARIBE, INC. 14 - 199.117.144.0/22 20303 0.2% AS4184 -- STORTEK-WHQ - Storage Technology Corporation 15 - 129.80.0.0/16 20294 0.2% AS4184 -- STORTEK-WHQ - Storage Technology Corporation 16 - 221.135.251.0/24 19158 0.2% AS9583 -- SIFY-AS-IN Sify Limited 17 -
BGP Update Report
BGP Update Report Interval: 01-Sep-08 -to- 02-Oct-08 (32 days) Observation Point: BGP Peering with AS2.0 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS9583 270423 3.1% 219.0 -- SIFY-AS-IN Sify Limited 2 - AS1803 112677 1.3% 83.0 -- ICMNET-5 - Sprint 3 - AS453894973 1.1% 18.9 -- ERX-CERNET-BKB China Education and Research Network Center 4 - AS569178608 0.9%6046.8 -- MITRE-AS-5 - The MITRE Corporation 5 - AS815173506 0.8% 30.0 -- Uninet S.A. de C.V. 6 - AS638968084 0.8% 15.7 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 7 - AS905162207 0.7% 391.2 -- IDM Autonomous System 8 - AS20255 52357 0.6%2181.5 -- Tecnowind S.A. 9 - AS14593 51930 0.6% 51930.0 -- BRAND-INSTITUTE - Brand Instiute, Inc. 10 - AS418451693 0.6% 25846.5 -- STORTEK-WHQ - Storage Technology Corporation 11 - AS209 50485 0.6% 16.8 -- ASN-QWEST - Qwest 12 - AS10396 49882 0.6% 906.9 -- COQUI-NET - DATACOM CARIBE, INC. 13 - AS427446859 0.5% 689.1 -- ERX-AU-NET Assumption University 14 - AS11971 43557 0.5%6222.4 -- PFIZERNET-GROTON - PFIZER INC. 15 - AS30890 40551 0.5% 29.9 -- EVOLVA Evolva Telecom 16 - AS20115 39360 0.5% 19.7 -- CHARTER-NET-HKY-NC - Charter Communications 17 - AS701838723 0.4% 26.2 -- ATT-INTERNET4 - ATT WorldNet Services 18 - AS18231 36408 0.4% 146.2 -- EXATT-AS-AP IOL NETCOM LTD 19 - AS645835507 0.4% 104.4 -- Telgua 20 - AS17488 34904 0.4% 23.4 -- HATHWAY-NET-AP Hathway IP Over Cable Internet TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS14593 51930 0.6% 51930.0 -- BRAND-INSTITUTE - Brand Instiute, Inc. 2 - AS418451693 0.6% 25846.5 -- STORTEK-WHQ - Storage Technology Corporation 3 - AS826618591 0.2% 18591.0 -- NEXUSTEL Nexus Telecommunications 4 - AS299106939 0.1%6939.0 -- IACP - INTL. ASSN OF CHIEF OF POLICEI 5 - AS381806814 0.1%6814.0 -- ETPI-IDS-JOLLIBEE-AS-AP 6/Fth floor JOLLIBEE PLAZA, Emerald Ave. Ortigas Center Pasig City. 6 - AS11971 43557 0.5%6222.4 -- PFIZERNET-GROTON - PFIZER INC. 7 - AS569178608 0.9%6046.8 -- MITRE-AS-5 - The MITRE Corporation 8 - AS4557 7862 0.1%3931.0 -- EP0-BLK-ASNBLOCK-7 - EP.NET, LLC. 9 - AS30969 30688 0.3%3836.0 -- TAN-NET TransAfrica Networks 10 - AS23082 18093 0.2%3618.6 -- MPHI - Michigan Public Health Institute 11 - AS441942814 0.0%2814.0 -- FREIFUNK-BERLIN-AS Freifunk Berlin 12 - AS327612557 0.0%2557.0 -- WASSE-NYC - Wasserstein Co. 13 - AS239172280 0.0%2280.0 -- BRIBIE-NET-AS-AP Bribie Island Net Multihomed, Brisbane 14 - AS20255 52357 0.6%2181.5 -- Tecnowind S.A. 15 - AS244911705 0.0%1705.0 -- WORLDWEB-THAILAND-AS-AP Internet Service Provider Thailand 16 - AS320111529 0.0%1529.0 -- JOHO-NYC - Joho Capital, LLC 17 - AS102215694 0.1%1423.5 -- HEWLETT-PACKARD Multi-homed connections to multiple ISP's providing 18 - AS974710398 0.1%1299.8 -- EZINTERNET-AS-AP EZInternet Pty Ltd 19 - AS253211251 0.0%1251.0 -- G4S-NET GROUP 4 SECURITAS Prague 20 - AS3944 3594 0.0%1198.0 -- PARTAN-LAB - Partan Partan TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 192.12.120.0/24 78486 0.8% AS5691 -- MITRE-AS-5 - The MITRE Corporation 2 - 210.214.151.0/24 61815 0.7% AS9583 -- SIFY-AS-IN Sify Limited 3 - 221.134.222.0/24 58347 0.6% AS9583 -- SIFY-AS-IN Sify Limited 4 - 194.126.143.0/24 52197 0.6% AS9051 -- IDM Autonomous System 5 - 12.8.7.0/24 51930 0.6% AS14593 -- BRAND-INSTITUTE - Brand Instiute, Inc. 6 - 221.135.80.0/24 47652 0.5% AS9583 -- SIFY-AS-IN Sify Limited 7 - 210.210.112.0/24 45236 0.5% AS9583 -- SIFY-AS-IN Sify Limited 8 - 12.18.36.0/24 43289 0.5% AS11971 -- PFIZERNET-GROTON - PFIZER INC. 9 - 221.135.251.0/24 32666 0.3% AS9583 -- SIFY-AS-IN Sify Limited 10 - 221.128.192.0/18 28021 0.3% AS18231 -- EXATT-AS-AP IOL NETCOM LTD 11 - 200.108.200.0/24 26534 0.3% AS20255 -- Tecnowind S.A. 12 - 199.117.144.0/22 25847 0.3% AS4184 -- STORTEK-WHQ - Storage Technology Corporation 13 - 129.80.0.0/16 25846 0.3% AS4184 -- STORTEK-WHQ - Storage Technology Corporation 14 - 200.108.220.0/24 25547 0.3% AS20255 -- Tecnowind S.A. 15 - 72.50.96.0/20 24477 0.3% AS10396 -- COQUI-NET - DATACOM CARIBE, INC. 16 - 196.42.0.0/20 24460 0.3% AS10396 -- COQUI-NET - DATACOM CARIBE, INC. 17 - 83.228.71.0/24
The Cidr Report
This report has been generated at Fri Oct 3 21:17:30 2008 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
26-09-08282212 172840
27-09-08281895 173376
28-09-08281607 173846
29-09-08282138 174099
30-09-08282044 173861
01-10-08282391 174307
02-10-08282791 172229
03-10-08282818 171922
AS Summary
29547 Number of ASes in routing system
12513 Number of ASes announcing only one prefix
5032 Largest number of prefixes announced by an AS
AS4538 : ERX-CERNET-BKB China Education and Research Network
Center
88349184 Largest address span announced by an AS (/32s)
AS721 : DISA-ASNBLK - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 03Oct08 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 282956 171914 11104239.2% All ASes
AS4538 5032 880 415282.5% ERX-CERNET-BKB China Education
and Research Network Center
AS6389 4302 351 395191.8% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS209 2948 1332 161654.8% ASN-QWEST - Qwest
Communications Corporation
AS1785 1670 159 151190.5% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS6298 2010 714 129664.5% COX-PHX - Cox Communications
Inc.
AS4755 1457 271 118681.4% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS17488 1393 307 108678.0% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS4323 1537 596 94161.2% TWTC - tw telecom holdings,
inc.
AS22773 991 86 90591.3% CCINET-2 - Cox Communications
Inc.
AS8151 1411 550 86161.0% Uninet S.A. de C.V.
AS19262 956 174 78281.8% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS11492 1212 442 77063.5% CABLEONE - CABLE ONE
AS18566 1057 318 73969.9% COVAD - Covad Communications
Co.
AS18101 781 94 68788.0% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS2386 1557 912 64541.4% INS-AS - ATT Data
Communications Services
AS9498 682 72 61089.4% BBIL-AP BHARTI Airtel Ltd.
AS6478 1203 597 60650.4% ATT-INTERNET3 - ATT WorldNet
Services
AS3356 1032 539 49347.8% LEVEL3 Level 3 Communications
AS855596 108 48881.9% CANET-ASN-4 - Bell Aliant
AS4766 914 438 47652.1% KIXS-AS-KR Korea Telecom
AS4808 616 145 47176.5% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS17676 524 65 45987.6% GIGAINFRA BB TECHNOLOGY Corp.
AS9443 524 77 44785.3% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS20115 1805 1360 44524.7% CHARTER-NET-HKY-NC - Charter
Communications
AS7011 913 476 43747.9% FRONTIER-AND-CITIZENS -
Frontier Communications of
America, Inc.
AS7545 586 149 43774.6% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS22047 564 128 43677.3% VTR BANDA ANCHA S.A.
AS24560 593 157 43673.5% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS7018 1433 999 434
BGP Update Report
BGP Update Report Interval: 25-Aug-08 -to- 25-Sep-08 (32 days) Observation Point: BGP Peering with AS2.0 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS9583 293291 3.5% 220.7 -- SIFY-AS-IN Sify Limited 2 - AS1803 109779 1.3% 81.6 -- ICMNET-5 - Sprint 3 - AS4538 104222 1.2% 20.7 -- ERX-CERNET-BKB China Education and Research Network Center 4 - AS569178349 0.9%6026.8 -- MITRE-AS-5 - The MITRE Corporation 5 - AS815168816 0.8% 29.0 -- Uninet S.A. de C.V. 6 - AS905164130 0.8% 400.8 -- IDM Autonomous System 7 - AS638962409 0.7% 14.3 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 8 - AS418461060 0.7% 30530.0 -- STORTEK-WHQ - Storage Technology Corporation 9 - AS14593 51960 0.6% 51960.0 -- BRAND-INSTITUTE - Brand Instiute, Inc. 10 - AS209 49708 0.6% 10.4 -- ASN-QWEST - Qwest 11 - AS10396 49135 0.6% 701.9 -- COQUI-NET - DATACOM CARIBE, INC. 12 - AS427445008 0.5% 661.9 -- ERX-AU-NET Assumption University 13 - AS17488 42268 0.5% 28.9 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 14 - AS20115 41040 0.5% 22.8 -- CHARTER-NET-HKY-NC - Charter Communications 15 - AS30890 40002 0.5% 28.6 -- EVOLVA Evolva Telecom 16 - AS11971 39566 0.5%5652.3 -- PFIZERNET-GROTON - PFIZER INC. 17 - AS886638036 0.5% 117.0 -- BTC-AS Bulgarian Telecommunication Company Plc. 18 - AS18231 36518 0.4% 146.7 -- EXATT-AS-AP IOL NETCOM LTD 19 - AS701834799 0.4% 23.5 -- ATT-INTERNET4 - ATT WorldNet Services 20 - AS645833132 0.4% 91.8 -- Telgua TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS14593 51960 0.6% 51960.0 -- BRAND-INSTITUTE - Brand Instiute, Inc. 2 - AS418461060 0.7% 30530.0 -- STORTEK-WHQ - Storage Technology Corporation 3 - AS826614927 0.2% 14927.0 -- NEXUSTEL Nexus Telecommunications 4 - AS299107072 0.1%7072.0 -- IACP - INTL. ASSN OF CHIEF OF POLICEI 5 - AS381806550 0.1%6550.0 -- ETPI-IDS-JOLLIBEE-AS-AP 6/Fth floor JOLLIBEE PLAZA, Emerald Ave. Ortigas Center Pasig City. 6 - AS569178349 0.9%6026.8 -- MITRE-AS-5 - The MITRE Corporation 7 - AS11971 39566 0.5%5652.3 -- PFIZERNET-GROTON - PFIZER INC. 8 - AS432994660 0.1%4660.0 -- TELECONTACT-AS Telecontact Ltd. 9 - AS4557 7872 0.1%3936.0 -- EP0-BLK-ASNBLOCK-7 - EP.NET, LLC. 10 - AS23082 19333 0.2%3866.6 -- MPHI - Michigan Public Health Institute 11 - AS30969 26572 0.3%3321.5 -- TAN-NET TransAfrica Networks 12 - AS441943184 0.0%3184.0 -- FREIFUNK-BERLIN-AS Freifunk Berlin 13 - AS239172247 0.0%2247.0 -- BRIBIE-NET-AS-AP Bribie Island Net Multihomed, Brisbane 14 - AS244911774 0.0%1774.0 -- WORLDWEB-THAILAND-AS-AP Internet Service Provider Thailand 15 - AS320111572 0.0%1572.0 -- JOHO-NYC - Joho Capital, LLC 16 - AS974711612 0.1%1451.5 -- EZINTERNET-AS-AP EZInternet Pty Ltd 17 - AS102215686 0.1%1421.5 -- HEWLETT-PACKARD Multi-homed connections to multiple ISP's providing 18 - AS253211247 0.0%1247.0 -- G4S-NET GROUP 4 SECURITAS Prague 19 - AS352872469 0.0%1234.5 -- BGT-NOGLIKI-AS JSC BG Telecom Nogliki 20 - AS398432258 0.0%1129.0 -- RATECOM-AS Joint Stock Company Ratecom TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 192.12.120.0/24 78240 0.9% AS5691 -- MITRE-AS-5 - The MITRE Corporation 2 - 210.214.151.0/24 61247 0.7% AS9583 -- SIFY-AS-IN Sify Limited 3 - 221.134.222.0/24 58908 0.7% AS9583 -- SIFY-AS-IN Sify Limited 4 - 194.126.143.0/24 55779 0.6% AS9051 -- IDM Autonomous System 5 - 12.8.7.0/24 51960 0.6% AS14593 -- BRAND-INSTITUTE - Brand Instiute, Inc. 6 - 210.210.112.0/24 48805 0.6% AS9583 -- SIFY-AS-IN Sify Limited 7 - 221.135.80.0/24 48067 0.5% AS9583 -- SIFY-AS-IN Sify Limited 8 - 221.135.251.0/24 42804 0.5% AS9583 -- SIFY-AS-IN Sify Limited 9 - 12.18.36.0/24 39310 0.4% AS11971 -- PFIZERNET-GROTON - PFIZER INC. 10 - 129.80.0.0/16 30747 0.3% AS4184 -- STORTEK-WHQ - Storage Technology Corporation 11 - 199.117.144.0/22 30313 0.3% AS4184 -- STORTEK-WHQ - Storage Technology Corporation 12 - 83.228.71.0/2428667 0.3% AS8866 -- BTC-AS Bulgarian Telecommunication Company Plc. 13 - 221.128.192.0/18 28275 0.3% AS18231 -- EXATT-AS-AP IOL NETCOM LTD 14 - 72.50.96.0/20 24678 0.3% AS10396 -- COQUI-NET - DATACOM CARIBE, INC. 15 - 196.42.0.0/20 23694 0.3% AS10396 --
The Cidr Report
This report has been generated at Fri Sep 26 21:17:13 2008 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
19-09-08281956 172041
20-09-08281868 172074
21-09-08281827 172189
22-09-08281819 172625
23-09-08281367 173268
24-09-08281992 173902
25-09-08282130 173067
26-09-08282212 171940
AS Summary
29495 Number of ASes in routing system
12509 Number of ASes announcing only one prefix
5018 Largest number of prefixes announced by an AS
AS4538 : ERX-CERNET-BKB China Education and Research Network
Center
88406272 Largest address span announced by an AS (/32s)
AS721 : DISA-ASNBLK - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 26Sep08 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 282143 172778 10936538.8% All ASes
AS4538 5018 876 414282.5% ERX-CERNET-BKB China Education
and Research Network Center
AS6389 4295 351 394491.8% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS209 2957 1348 160954.4% ASN-QWEST - Qwest
AS1785 1659 159 150090.4% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS4755 1646 299 134781.8% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS6298 1998 732 126663.4% COX-PHX - Cox Communications
Inc.
AS17488 1388 300 108878.4% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS4323 1518 502 101666.9% TWTC - tw telecom holdings,
inc.
AS22773 987 69 91893.0% CCINET-2 - Cox Communications
Inc.
AS8151 1410 576 83459.1% Uninet S.A. de C.V.
AS18566 1052 231 82178.0% COVAD - Covad Communications
Co.
AS19262 953 228 72576.1% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS11492 1210 487 72359.8% CABLEONE - CABLE ONE
AS2386 1556 910 64641.5% INS-AS - ATT Data
Communications Services
AS9498 680 72 60889.4% BBIL-AP BHARTI Airtel Ltd.
AS6478 1187 587 60050.5% ATT-INTERNET3 - ATT WorldNet
Services
AS18101 776 233 54370.0% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS3356 1029 527 50248.8% LEVEL3 Level 3 Communications
AS4766 903 416 48753.9% KIXS-AS-KR Korea Telecom
AS4808 626 152 47475.7% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS17676 524 64 46087.8% GIGAINFRA BB TECHNOLOGY Corp.
AS7029 538 91 44783.1% WINDSTREAM - Windstream
Communications Inc
AS855595 157 43873.6% CANET-ASN-4 - Bell Aliant
AS4134 840 402 43852.1% CHINANET-BACKBONE
No.31,Jin-rong Street
AS7545 586 149 43774.6% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS9443 523 86 43783.6% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS22047 564 127 43777.5% VTR BANDA ANCHA S.A.
AS7011 913 478 43547.6% FRONTIER-AND-CITIZENS -
Frontier Communications of
America, Inc.
AS7018 1429 997 43230.2% ATT-INTERNET4 - ATT WorldNet
Services
AS24560 586 156 43073.4%
BGP Update Report
BGP Update Report Interval: 18-Aug-08 -to- 18-Sep-08 (32 days) Observation Point: BGP Peering with AS2.0 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS9583 301731 3.8% 226.5 -- SIFY-AS-IN Sify Limited 2 - AS1803 126042 1.6% 94.9 -- ICMNET-5 - Sprint 3 - AS4538 107539 1.3% 21.4 -- ERX-CERNET-BKB China Education and Research Network Center 4 - AS569177600 1.0%5969.2 -- MITRE-AS-5 - The MITRE Corporation 5 - AS815176788 1.0% 31.8 -- Uninet S.A. de C.V. 6 - AS638967460 0.8% 15.5 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 7 - AS905165154 0.8% 407.2 -- IDM Autonomous System 8 - AS209 51813 0.7% 10.8 -- ASN-QWEST - Qwest 9 - AS14593 50458 0.6% 50458.0 -- BRAND-INSTITUTE - Brand Instiute, Inc. 10 - AS10396 46699 0.6% 667.1 -- COQUI-NET - DATACOM CARIBE, INC. 11 - AS17488 44961 0.6% 30.8 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 12 - AS418443385 0.5% 21692.5 -- STORTEK-WHQ - Storage Technology Corporation 13 - AS886639604 0.5% 123.0 -- BTC-AS Bulgarian Telecommunication Company Plc. 14 - AS20115 38076 0.5% 21.4 -- CHARTER-NET-HKY-NC - Charter Communications 15 - AS18231 36058 0.5% 146.0 -- EXATT-AS-AP IOL NETCOM LTD 16 - AS701835690 0.5% 24.2 -- ATT-INTERNET4 - ATT WorldNet Services 17 - AS666335173 0.4% 286.0 -- EUROWEBRO Euroweb Romania SA 18 - AS919834983 0.4% 152.1 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 19 - AS475533910 0.4% 19.5 -- TATACOMM-AS TATA Communications formerly VSNL is Leading ISP 20 - AS645831107 0.4% 70.2 -- Telgua TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS14593 50458 0.6% 50458.0 -- BRAND-INSTITUTE - Brand Instiute, Inc. 2 - AS418443385 0.5% 21692.5 -- STORTEK-WHQ - Storage Technology Corporation 3 - AS8266 9569 0.1%9569.0 -- NEXUSTEL Nexus Telecommunications 4 - AS299108235 0.1%8235.0 -- IACP - INTL. ASSN OF CHIEF OF POLICEI 5 - AS569177600 1.0%5969.2 -- MITRE-AS-5 - The MITRE Corporation 6 - AS381805727 0.1%5727.0 -- ETPI-IDS-JOLLIBEE-AS-AP 6/Fth floor JOLLIBEE PLAZA, Emerald Ave. Ortigas Center Pasig City. 7 - AS432994606 0.1%4606.0 -- TELECONTACT-AS Telecontact Ltd. 8 - AS4557 7873 0.1%3936.5 -- EP0-BLK-ASNBLOCK-7 - EP.NET, LLC. 9 - AS23082 18900 0.2%3780.0 -- MPHI - Michigan Public Health Institute 10 - AS11971 21651 0.3%3093.0 -- PFIZERNET-GROTON - PFIZER INC. 11 - AS30969 23119 0.3%2311.9 -- TAN-NET TransAfrica Networks 12 - AS239172160 0.0%2160.0 -- BRIBIE-NET-AS-AP Bribie Island Net Multihomed, Brisbane 13 - AS244911774 0.0%1774.0 -- WORLDWEB-THAILAND-AS-AP Internet Service Provider Thailand 14 - AS441941590 0.0%1590.0 -- FREIFUNK-BERLIN-AS Freifunk Berlin 15 - AS320111577 0.0%1577.0 -- JOHO-NYC - Joho Capital, LLC 16 - AS974712268 0.1%1533.5 -- EZINTERNET-AS-AP EZInternet Pty Ltd 17 - AS253211249 0.0%1249.0 -- G4S-NET GROUP 4 SECURITAS Prague 18 - AS262765529 0.1%1105.8 -- TIMKEN-USA - The Timken Company 19 - AS398432156 0.0%1078.0 -- RATECOM-AS Joint Stock Company Ratecom 20 - AS3944 4275 0.1%1068.8 -- PARTAN-LAB - Partan Partan TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 192.12.120.0/24 77527 0.9% AS5691 -- MITRE-AS-5 - The MITRE Corporation 2 - 221.134.222.0/24 59162 0.7% AS9583 -- SIFY-AS-IN Sify Limited 3 - 194.126.143.0/24 57735 0.7% AS9051 -- IDM Autonomous System 4 - 210.214.151.0/24 55122 0.6% AS9583 -- SIFY-AS-IN Sify Limited 5 - 12.8.7.0/24 50458 0.6% AS14593 -- BRAND-INSTITUTE - Brand Instiute, Inc. 6 - 210.210.112.0/24 44322 0.5% AS9583 -- SIFY-AS-IN Sify Limited 7 - 221.135.80.0/24 44047 0.5% AS9583 -- SIFY-AS-IN Sify Limited 8 - 221.135.251.0/24 42813 0.5% AS9583 -- SIFY-AS-IN Sify Limited 9 - 83.228.71.0/2430651 0.4% AS8866 -- BTC-AS Bulgarian Telecommunication Company Plc. 10 - 221.128.192.0/18 27373 0.3% AS18231 -- EXATT-AS-AP IOL NETCOM LTD 11 - 72.50.96.0/20 24360 0.3% AS10396 -- COQUI-NET - DATACOM CARIBE, INC. 12 - 199.117.144.0/22 21694 0.2% AS4184 -- STORTEK-WHQ - Storage Technology Corporation 13 - 129.80.0.0/16 21691 0.2% AS4184 -- STORTEK-WHQ - Storage Technology Corporation 14 - 12.18.36.0/24 21381 0.2% AS11971 -- PFIZERNET-GROTON - PFIZER INC. 15 - 196.42.0.0/20 21180 0.2%
