Hi NANOG, I manually extracted the origins and their org info for the announced block of prefixes. All these prefixes were observed being originated by at most four ASNs simultaneously. I suspect they provide anycast or IXP service, but not positive. Please confirm my conjecture if you know them. Thanks!
27.130.0.0/16 58.147.0.0/20 58.147.0.0/17 58.147.16.0/20 58.147.64.0/20 58.147.80.0/20 58.147.96.0/20 58.147.112.0/20 110.164.0.0/16 110.164.48.0/20 110.164.64.0/20 110.164.80.0/20 110.164.176.0/20 112.143.0.0/16 180.183.0.0/16 202.69.136.0/21 223.204.0.0/16 223.205.0.0/16 AS24326: as-name:TTT-AS-AP|descr:Maxnet, Internet Service Provider, Bangkok|country:TH AS38550: as-name:TTGN-INTER-AS-AP|descr:TTGN , INTERNATIONAL INTERNET GATEWAY, THAILAND|country:TH AS45629: as-name:JASTEL-NETWORK-TH-AP|descr:Jasmine International Tower|country:TH AS45758: as-name:TRIPLETNET-AS-AP|descr:TripleT Internet Internet service provider Bangkok|country:TH 61.237.224.0/20 AS4808:as-name:CHINA169-BJ|descr:CNCGROUP IP network China169 Beijing Province Network|country:CN AS4847:as-name:CNIX-AP|descr:China Networks Inter-Exchange AS9819:as-name:BZNET|descr:Beijing Bozhiruihai Network Technology Co., Ltd.|country:CN AS17772:as-name:CHINACOM|descr:CHINA COMMUNICATIONS SYSTEM Co.,Ltd.|country:CN AS17964: as-name:DXTNET|descr:Beijing Dian-Xin-Tong Network Technologies Co., Ltd.|country:CN AS24138:as-name:CRNET_BJ_IDC-CNNIC-AP|descr:China Tietong Telecommunication Corporation|CN AS38356:as-name:NETEON|descr:Beijing Neteon Tech Co, Ltd.|country:CN AS45114:as-name:CNNIC-SUNINFO-MDC-AP|descr:Beijing Sunrise Technology Co. Ltd.|country:CN 65.61.188.0/24 69.20.95.0/24 AS10532:ASName: RACKSPACE;OrgName:Rackspace Hosting AS15395:as-name:UNSPECIFIED|descr:UK Rackspace|descr:LONDON office AS27357:ASName: RACKSPACE;OrgName:Rackspace Hosting AS33070:ASName: RMH-14;OrgName:Rackspace Hosting 112.142.0.0/16 222.123.0.0/16 AS24326: as-name:TTT-AS-AP|descr:Maxnet, Internet Service Provider, Bangkok|country:TH AS38550: as-name:TTGN-INTER-AS-AP|descr:TTGN , INTERNATIONAL INTERNET GATEWAY, THAILAND|country:TH AS45629: as-name:JASTEL-NETWORK-TH-AP|descr:Jasmine International Tower|country:TH AS45758: as-name:TRIPLETNET-AS-AP|descr:TripleT Internet Internet service provider Bangkok|country:TH AS45626:as-name:TOPL-AU-AS|descr:Travelex Outsourcing Pty Ltd 5/504 Pacific Highway St Leonards NSW AUS 2065|country:AU 198.32.64.0/24 AS4555:ASName: EP0-BLK-ASNBLOCK-5;OrgName:Almond Oil Process, LLC. AS9584:as-name:GENESIS-AP|descr:Diyixian.com Limited|country:HK AS20144:ASName: L-ROOT;Comment:distributed using Anycast. AS42909: as-name: COMMUNITYDNS;descr: Internet Computer Bureau Ltd 198.32.136.0/24 AS195:OrgName:San Diego Supercomputer Center AS293:OrgName:ESnet|OrgId:ENSN-Z AS1239:OrgName:Sprint AS2914:OrgName:NTT America, Inc. AS7018:OrgName:AT&T Services, Inc. 198.32.175.0/24 AS2497:as-name:IIJ|descr:Internet Initiative Japan Inc. AS2914:OrgName:NTT America, Inc.| AS4323:OrgName:tw telecom holdings, inc. AS5650:OrgName:Frontier Communications of America, Inc. AS6461:OrgName:Abovenet Communications, Inc 202.99.58.0/24 AS4808:as-name:CHINA169-BJ|descr:CNCGROUP IP network China169 Beijing Province Network|country:CN AS6619:as-name:SAMSUNGNETWORKS-AS-KR|descr:Samsung Networks Inc. AS17431:as-name:TONET|descr:Beijing TONEK Information Technology Development Company|country:CN AS17964:as-name:DXTNET|descr:Beijing Dian-Xin-Tong Network Technologies Co., Ltd.|country:CN 202.122.116.0/24 AS17775:as-name:STN-CN|descr:SHANGHAI Guangdian Electronics Group Co.,Ltd|country:CN AS18118:as-name:CITICNET-AP|descr:CITIC Networks Management Co.,Ltd. AS24142:as-name:CNNIC-BennalongNet-AP|descr:Shanghai Bennalong Network Technology Co.,LTD AS38356:as-name:NETEON|descr:Beijing Neteon Tech Co, Ltd.|descr:Room203-204, No.1,737,CaoXi Road North,Shanghai,China|country:CN AS38814:as-name:ASIAMAX-HK-EA-AP|descr:Asiamax Technology Limited VPN Service Provider Hong Kong|country:HK 203.119.30.0/24 AS24151:as-name:CNNIC-CRITICAL-AP|descr:China Internet Network Infomation Center AS24406:as-name:CNNIC-CRITICAL-AP|descr:China Internet Network Infomation Center AS24408:as-name:CNNIC-CRITICAL-AP|descr:China Internet Network Infomation Center AS24410:as-name:CNNIC-CRITICAL-AP|descr:China Internet Network Infomation Center 204.79.195.0/24 AS8068:OrgName:Microsoft Corp AS8069:OrgName:GRYPHON NETWORKS AS8071:OrgName:Microsoft Corp AS8075:OrgName:Microsoft Corp 204.79.197.0/24 AS8068:OrgName:Microsoft Corp AS8069:OrgName:GRYPHON NETWORKS AS8071:OrgName:Microsoft Corp AS8075:OrgName:Microsoft Corp AS12076:OrgName:Hotmail Corporation 206.51.38.0/24 AS3549:OrgName:Hotmail Corporation AS6453:OrgName:Tata Communications AS7911:OrgName:Level 3 Communications, Inc. AS25973:OrgName:Mzima Networks, Inc. 206.223.116.0/24 AS293:OrgName:ESnet AS1280:OrgName:Internet Systems Consortium, Inc. AS2914:OrgName:NTT America, Inc. AS6461:OrgName:Abovenet Communications, Inc AS23352:OrgName:Server Central Network 207.231.241.0/24 AS101:OrgName:University of Washington AS226:OrgName:Los Nettos AS293:OrgName:ESnet AS14221:OrgName:University of Washington 208.67.239.0/24 AS11588:OrgName:Highwinds Network Group, Inc. AS23148:OrgName:TERRENAP DATA CENTERS, INC. AS29045:IT ACTION - Managed Hosting AS40009:OrgName:BitGravity, Inc. 222.35.0.0/18 AS4808:as-name:CHINA169-BJ|descr:CNCGROUP IP network China169 Beijing Province Network|country:CN AS4847:as-name:CNIX-AP|descr:China Networks Inter-Exchange|descr:Using International Link at Beijing AS9819:as-name:BZNET|descr:Beijing Bozhiruihai Network Technology Co., Ltd.|country:CN AS17964:as-name:DXTNET|descr:Beijing Dian-Xin-Tong Network Technologies Co., Ltd.|country:CN AS24138:as-name:CRNET_BJ_IDC-CNNIC-AP|descr:China Tietong Telecommunication Corporation|descr:Beijing branch IDC network|country:CN AS38356:as-name:CRNET_BJ_IDC-CNNIC-AP|descr:China Tietong Telecommunication Corporation|descr:Beijing branch IDC network|country:CN AS45114:as-name:CNNIC-SUNINFO-MDC-AP|descr:Beijing Sunrise Technology Co. Ltd. 222.35.248.0/21 AS4847:as-name:CNIX-AP|descr:China Networks Inter-Exchange|descr:Using International Link at Beijing AS9802:as-name:CHINA-ABITCOOL|descr:Abitcool(China) Inc.|country:CN AS9803:as-name:JINGXUN|descr:Beijing Jingxun Public Information Technology Co., Ltd|country:CN AS17964:as-name:DXTNET|descr:Beijing Dian-Xin-Tong Network Technologies Co., Ltd.|country:CN AS18118:as-name:CITICNET-AP|descr:CITIC Networks Management Co.,Ltd. AS24138:as-name:CRNET_BJ_IDC-CNNIC-AP|descr:China Tietong Telecommunication Corporation|descr:Beijing branch IDC network|country:CN AS38356:as-name:CRNET_BJ_IDC-CNNIC-AP|descr:China Tietong Telecommunication Corporation|descr:Beijing branch IDC network|country:CN: Yaoqing On Wed, May 4, 2011 at 3:20 PM, Yaoqing(Joey) Liu <[email protected]> wrote: > > > On Wed, May 4, 2011 at 3:15 PM, Joe Abley <[email protected]> wrote: >> >> On 2011-05-04, at 23:11, Yaoqing(Joey) Liu wrote: >> >> > Thanks for clarifying this, actually I have a few more blocks with four >> > origin ASNs that I'm not positive if they are anycast prefixes. Please >> > help distinguish them if the provide anycast service. >> >> You could probably get a good distance towards the answer to this by looking >> up the prefixes yourself using appropriate whois servers. Enumerating every >> prefix you see with more than one apparent origin and asking NANOG to type >> whois for you does not scale very well. > > This is definitely a good idea, I'll do it right now. Thanks. > > Yaoqing >> >> >> Joe
