[apops] The CIDR Report
This report has been generated at Fri May 22 21:14:59 2020 AEST.
The report analyses the eBGP Routing Table at AS131072
and generates a report on aggregation potential within the table.
Check https://www.cidr-report.org/2.0 for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
15-05-20835313 452995
16-05-20837482 453207
17-05-20837603 452927
18-05-20837410 452650
19-05-20836876 446463
20-05-20836986 446817
21-05-20836546 447809
22-05-20837340 447648
AS Summary
68322 Number of ASes in routing system
24349 Number of ASes announcing only one prefix
7001 Largest number of prefixes announced by an AS
AS47331: TTNET, TR
116068096 Largest address span announced by an AS (/32s)
AS4134 : CHINANET-BACKBONE No.31,Jin-rong Street, CN
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').
--- 22May20 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 835554 447674 38788046.4% All ASes
AS8151 6610 993 561785.0% Uninet S.A. de C.V., MX
AS31334 4905 769 413684.3% KABELDEUTSCHLAND-AS, DE
AS47331 7001 3139 386255.2% TTNET, TR
AS7545 5500 1771 372967.8% TPG-INTERNET-AP TPG Telecom
Limited, AU
AS39891 3651 26 362599.3% ALJAWWALSTC-AS, SA
AS7155 4036 438 359889.1% VIASAT-SP-BACKBONE, US
AS22773 3553 167 338695.3% ASN-CXA-ALL-CCI-22773-RDC, US
AS6327 3366 90 327697.3% SHAW, CA
AS7552 3436 209 322793.9% VIETEL-AS-AP Viettel Group, VN
AS12479 5758 2776 298251.8% UNI2-AS, ES
AS8551 3188 232 295692.7% BEZEQ-INTERNATIONAL-AS
Bezeqint Internet Backbone,
IL
AS4538 4756 2165 259154.5% ERX-CERNET-BKB China Education
and Research Network Center,
CN
AS9808 2630 257 237390.2% CMNET-GD Guangdong Mobile
Communication Co.Ltd., CN
AS45899 3186 871 231572.7% VNPT-AS-VN VNPT Corp, VN
AS11492 4421 2194 222750.4% CABLEONE, US
AS7713 2711 515 219681.0% TELKOMNET-AS-AP PT
Telekomunikasi Indonesia, ID
AS4755 2136 230 190689.2% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP, IN
AS26484 2195 327 186885.1% IKGUL-26484, US
AS11830 2667 843 182468.4% Instituto Costarricense de
Electricidad y Telecom., CR
AS9498 2274 576 169874.7% BBIL-AP BHARTI Airtel Ltd., IN
AS12389 2496 827 166966.9% ROSTELECOM-AS, RU
AS16509 3977 2341 163641.1% AMAZON-02, US
AS20115 2147 511 163676.2% CHARTER-20115, US
AS9394 2045 447 159878.1% CTTNET China TieTong
Telecommunications
Corporation, CN
AS13470 1863 272 159185.4% ITACE-AS-AP Itace
International Limited, HK
AS18403 1620 45 157597.2% FPT-AS-AP The Corporation for
Financing & Promoting
Technology, VN
AS18566 2032 464 156877.2% MEGAPATH5-, US
AS4766 2267 737 153067.5% KIXS-AS-KR Korea Telecom, KR
AS45090 1808 415 139377.0% CNNIC-TENCENT-NET-AP Shenzhen
Tencent Computer Systems
Company Limited, CN
AS6389 1393 137 125690.2% BELLSOUTH-NET-BLK, US
Total 99628247847484475.1% Top 30 total
Possible Bogus Routes
23.135.192.0/23 AS39652 DSC-ASN-1, CA
27.100.7.0/24AS56096
27.126.156.0/22 AS55827
27.126.156.0/23 AS55827
27.126.158.0/23 AS55827
41.67.192.0/18 AS15964 CAMNET-AS, CM
41.67.192.0/24 AS15964 CAMNET-AS, CM
41.67.200.0/24 AS15964 CAMNET-AS, CM
[apops] IPv6 BGP Update Report
IPv6 BGP Update Report Interval: 07-May-20 -to- 21-May-20 (14 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS9829 137006 7.6% 290.9 -- BSNL-NIB National Internet Backbone, IN 2 - AS18881 91738 5.1%2479.4 -- TELEFONICA BRASIL S.A, BR 3 - AS23650 67275 3.7% 840.9 -- CHINANET-JS-AS-AP AS Number for CHINANET jiangsu province backbone, CN 4 - AS18001 51943 2.9% 381.9 -- DIALOG-AS Dialog Axiata PLC., LK 5 - AS26259131928 1.8%1596.4 -- CONECTION SERVICOS DE VALOR ADICIONADO LTDA, BR 6 - AS27715 26228 1.4%3278.5 -- Locaweb Servicos de Internet S/A, BR 7 - AS33047 26136 1.4%1188.0 -- INSTART, US 8 - AS52634 24186 1.3%1343.7 -- BRNet Telecomunicacoes LTDA., BR 9 - AS26747822794 1.3%1085.4 -- GARDEN SAT PROVEDOR DE INTERNET LTDA ME, BR 10 - AS26901822674 1.2%7558.0 -- FIBER NET LTDA - ME, BR 11 - AS20897622137 1.2%2012.5 -- VNP, NL 12 - AS20940 22010 1.2% 34.3 -- AKAMAI-ASN1, EU 13 - AS26263821615 1.2%7205.0 -- BRASCONECT INFORMATICA LTDA, BR 14 - AS28173 20481 1.1%4096.2 -- Dinamica Telecomunicacoes Ltda, BR 15 - AS26957520368 1.1%1198.1 -- XIS 1 INTERNET FIBRA EIRELI, BR 16 - AS26490219993 1.1%3998.6 -- Clesat Comunicacao e Manutencao em Eletro.LDTA ME, BR 17 - AS45271 17929 1.0% 16.2 -- ICLNET-AS-AP Idea Cellular Limited, IN 18 - AS50917 17640 1.0% 17640.0 -- ITWS-AS IT Workshop LLC network, RU 19 - AS12654 17123 0.9% 450.6 -- RIPE-NCC-RIS-AS Reseaux IP Europeens Network Coordination Centre (RIPE NCC), EU 20 - AS52420 16548 0.9% 827.4 -- Intercom SRL, AR TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS50917 17640 1.0% 17640.0 -- ITWS-AS IT Workshop LLC network, RU 2 - AS52612 11170 0.6% 11170.0 -- Alt Informatica Ltda, BR 3 - AS20888416214 0.9%8107.0 -- MRSHEEP-AS, DE 4 - AS26901822674 1.2%7558.0 -- FIBER NET LTDA - ME, BR 5 - AS28172 7420 0.4%7420.0 -- PROJESOM INTERNET LTDA, BR 6 - AS52531 7376 0.4%7376.0 -- DL Informatica Ltda, BR 7 - AS26263821615 1.2%7205.0 -- BRASCONECT INFORMATICA LTDA, BR 8 - AS267056 7197 0.4%7197.0 -- EVEREST RIDGE CONSULTORIA EM REDES DE COM LTDA, BR 9 - AS265911 6829 0.4%6829.0 -- G6 Internet, BR 10 - AS262458 5613 0.3%5613.0 -- Tec System Sistemas Eletronicos LTDA, BR 11 - AS33110 5607 0.3%5607.0 -- UHSC-MBC, CA 12 - AS269214 5488 0.3%5488.0 -- J V ANDRADE TELECOMUNICACOES EIRELI ME, BR 13 - AS53857 10839 0.6%5419.5 -- EN-53857, US 14 - AS13510310615 0.6%5307.5 -- ALEX-NEO-AS-AP Alex Neo, SG 15 - AS137084 4760 0.3%4760.0 -- SENSE-AS-IN Sense Connect It Pvt Ltd, IN 16 - AS32629 9516 0.5%4758.0 -- CITY-OF-CHARLOTTE-ASN, US 17 - AS263609 4595 0.2%4595.0 -- Free Way Tecnologia, BR 18 - AS266210 4523 0.2%4523.0 -- ROBERTA ROSSATTO FRANCISCO - ME, BR 19 - AS37468 13444 0.7%4481.3 -- ANGOLA-CABLES, AO 20 - AS270383 4252 0.2%4252.0 -- MULTI TELECOMUNICACAO LTDA, BR TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 2a03:8160:14::/4 26086 1.4% AS33047 -- INSTART, US 2 - 2001:678:5b0::/4 17640 0.9% AS50917 -- ITWS-AS IT Workshop LLC network, RU 3 - 2a0d:2406:1c05:: 16401 0.8% AS208976 -- VNP, NL 4 - 2a0e:aa07:f091:: 16213 0.8% AS208884 -- MRSHEEP-AS, DE 5 - 2a0c:b641:763::/ 15807 0.8% AS207292 -- YUYAN-AS, GB 6 - 2404:5780:3::/48 15202 0.8% AS9558 -- PRIMECROWN-AS-IN PrimeCrown Technologies Private Limited, IN 7 - 2a0c:9a40:8114:: 13671 0.7% AS204438 -- RUBEN-GARBADE, CH 8 - 2804:3674::/3213439 0.7% AS37468 -- ANGOLA-CABLES, AO 9 - 2804:5128:500::/ 12607 0.7% AS268434 -- Quadri Telecom Ltda - ME, BR 10 - 2804:22fc::/3211170 0.6% AS52612 -- Alt Informatica Ltda, BR 11 - 2804:5e34::/3210898 0.6% AS269018 -- FIBER NET LTDA - ME, BR 12 - 2804:760::/36 10648 0.6% AS262638 -- BRASCONECT INFORMATICA LTDA, BR 13 - 2804:760:1000::/ 10643 0.6% AS262638 -- BRASCONECT INFORMATICA LTDA, BR 14 - 2402:9e80:9::/48 10614 0.6% AS135103 -- ALEX-NEO-AS-AP Alex Neo, SG 15 - 2620:0:2f0::/489511 0.5% AS32629 -- CITY-OF-CHARLOTTE-ASN, US 16 - 2804:218:beef::/ 9393 0.5% AS27715 -- Locaweb Servicos de Internet S/A, BR 17 - 2804:10a0::/32 9028 0.5% AS28173 -- Dinamica Telecomunicacoes Ltda, BR 18 - 2804:218::/32
[apops] The CIDR Report
This report has been generated at Fri May 22 21:45:42 2020 AEST. The report analyses the BGP Routing Table as seen within AS131072 and generates a report on aggregation potential within the table. Check https://www.cidr-report.org/v6 for a current version of this report. Recent Table History Date PrefixesCIDR Agg 15-05-20 87910 50968 16-05-20 87957 50952 17-05-20 88058 51047 18-05-20 88046 51030 19-05-20 88042 49966 20-05-20 88052 50084 21-05-20 88090 50516 22-05-20 88594 50516 AS Summary 19687 Number of ASes in routing system 12562 Number of ASes announcing only one prefix 2231 Largest number of prefixes announced by an AS AS11172: Alestra, S. de R.L. de C.V., MX 36318243520512 (/18.95) Largest address span announced by an AS (/64s) AS7922 : COMCAST-7922, US 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. --- 22May20 --- ASnumNetsNow NetsAggr NetGain % Gain Description Table 88525505863793942.9% All ASes AS11172 2231 96 213595.7% Alestra, S. de R.L. de C.V., MX AS12479 14444 144099.7% UNI2-AS, ES AS45609 1532 211 132186.2% BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for GPRS Service, IN AS28573 1222 121 110190.1% CLARO S.A., BR AS22773 1035 58 97794.4% ASN-CXA-ALL-CCI-22773-RDC, US AS45271 1101 228 87379.3% ICLNET-AS-AP Idea Cellular Limited, IN AS7552 7573 75499.6% VIETEL-AS-AP Viettel Group, VN AS32098 752 18 73497.6% TRANSTELCO-INC, US AS39891 7067 69999.0% ALJAWWALSTC-AS, SA AS33363 668 52 61692.2% BHN-33363, US AS16509 1254 748 50640.4% AMAZON-02, US AS4134 504 31 47393.8% CHINANET-BACKBONE No.31,Jin-rong Street, CN AS30036 557 162 39570.9% MEDIACOM-ENTERPRISE-BUSINESS, US AS38266 527 153 37471.0% VODAFONE-IN Vodafone India Ltd., IN AS17622 516 164 35268.2% CNCGROUP-GZ China Unicom Guangzhou network, CN AS9808 394 48 34687.8% CMNET-GD Guangdong Mobile Communication Co.Ltd., CN AS13142 373 29 34492.2% MOBIFONE-AS-VN MOBIFONE Corporation, VN AS9829 469 142 32769.7% BSNL-NIB National Internet Backbone, IN AS17552 356 50 30686.0% TRUE-AS-AP True Internet Co.,Ltd., TH AS39788 342 73 26978.7% STINGERS, US AS3462 2664 26298.5% HINET Data Communication Business Group, TW AS9605 271 14 25794.8% DOCOMO NTT DOCOMO, INC., JP AS13206 2581 25799.6% REALMOVE-AS-AP Realmove Company Limited, TH AS24173 2583 25598.8% NETNAM-AS-AP Netnam Company, VN AS8376 324 75 24976.9% Jordan Data Communications, JO AS24158 2512 24999.2% TAIWANMOBILE-AS Taiwan Mobile Co., Ltd., TW AS55303 302 53 24982.5% EAGLENET-AP 60 Market Square,P.O. Box 364, PH AS7545 336 91 24572.9% TPG-INTERNET-AP TPG Telecom Limited, AU AS174332 114 21865.7% COGENT-174, US AS62240 249 32 21787.1% CLOUVIDER London, United Kingdom, GB Total 19587 27871680085.8% Top 30 total Possible Bogus Routes 2001::/32AS6939 HURRICANE, US 2001:4:112::/48 AS112 2001:c0:3::/48 AS22884 TOTAL PLAY TELECOMUNICACIONES SA DE CV, MX 2001:478:132::/64AS23404 RITTERNET, US 2001:678:d50::/48AS21320 2001:df0:2b7::/48AS9555 VZB-AU-AS Verizon Australia PTY
[apops] Weekly Routing Table Report
This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG and the RIPE Routing WG. Daily listings are sent to bgp-st...@lists.apnic.net For historical data, please see http://thyme.rand.apnic.net. If you have any comments please contact Philip Smith . Routing Table Report 04:00 +10GMT Sat 23 May, 2020 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary BGP routing table entries examined: 810143 Prefixes after maximum aggregation (per Origin AS): 308417 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 395509 Total ASes present in the Internet Routing Table: 68127 Prefixes per ASN: 11.89 Origin-only ASes present in the Internet Routing Table: 58540 Origin ASes announcing only one prefix: 24422 Transit ASes present in the Internet Routing Table:9587 Transit-only ASes present in the Internet Routing Table:311 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 42 Max AS path prepend of ASN ( 22394) 38 Prefixes from unregistered ASNs in the Routing Table: 1128 Number of instances of unregistered ASNs: 1130 Number of 32-bit ASNs allocated by the RIRs: 31752 Number of 32-bit ASNs visible in the Routing Table: 26206 Prefixes from 32-bit ASNs in the Routing Table: 120873 Number of bogon 32-bit ASNs visible in the Routing Table:16 Special use prefixes present in the Routing Table:1 Prefixes being announced from unallocated address space: 0 Number of addresses announced to Internet: 2842268416 Equivalent to 169 /8s, 105 /16s and 147 /24s Percentage of available address space announced: 76.8 Percentage of allocated address space announced: 76.8 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.5 Total number of prefixes smaller than registry allocations: 602505 APNIC Region Analysis Summary - Prefixes being announced by APNIC Region ASes: 212647 Total APNIC prefixes after maximum aggregation: 62483 APNIC Deaggregation factor:3.40 Prefixes being announced from the APNIC address blocks: 0 Unique aggregates announced from the APNIC address blocks:0 APNIC Region origin ASes present in the Internet Routing Table: 10556 APNIC Prefixes per ASN:0.00 APNIC Region origin ASes announcing only one prefix: 2944 APNIC Region transit ASes present in the Internet Routing Table: 1571 Average APNIC Region AS path length visible:4.6 Max APNIC Region AS path length visible: 26 Number of APNIC region 32-bit ASNs visible in the Routing Table: 5635 Number of APNIC addresses announced to Internet: 0 Equivalent to 0 /8s, 0 /16s and 0 /24s APNIC AS Blocks4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 63488-64098, 64297-64395, 131072-141625 APNIC Address Blocks ARIN Region Analysis Summary Prefixes being announced by ARIN Region ASes:236997 Total ARIN prefixes after maximum aggregation: 109239 ARIN Deaggregation factor: 2.17 Prefixes being announced from the ARIN address blocks:0 Unique aggregates announced from the ARIN address blocks: 0 ARIN Region origin ASes present in the Internet Routing Table:18514 ARIN Prefixes per ASN: 0.00 ARIN Region origin ASes announcing only one prefix:6777 ARIN Region transit ASes present in the Internet Routing Table:1909 Average ARIN Region AS path length visible: 3.9 Max ARIN Region AS path length visible: 42 Number of ARIN region 32-bit ASNs visible in the Routing Table:3249 Number of ARIN addresses announced to Internet: 0 Equivalent to 0 /8s, 0 /16s and 0 /24s ARIN AS Blocks 1-1876, 1902-2042, 2044-2046,
