BGP Update Report Interval: 20-May-10 -to- 27-May-10 (7 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASN Upds % Upds/Pfx AS-Name 1 - AS14420 33287 3.0% 80.6 -- CORPORACION NACIONAL DE TELECOMUNICACIONES CNT S.A. 2 - AS5800 20231 1.8% 112.4 -- DNIC-ASBLK-05800-06055 - DoD Network Information Center 3 - AS4323 15200 1.4% 4.9 -- TWTC - tw telecom holdings, inc. 4 - AS8452 11866 1.1% 12.8 -- TEDATA TEDATA 5 - AS4538 10961 1.0% 142.4 -- ERX-CERNET-BKB China Education and Research Network Center 6 - AS28477 10079 0.9% 1119.9 -- Universidad Autonoma del Esstado de Morelos 7 - AS24560 9762 0.9% 10.9 -- AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telemedia Services 8 - AS32528 9270 0.8% 1854.0 -- ABBOTT Abbot Labs 9 - AS17974 7985 0.7% 13.6 -- TELKOMNET-AS2-AP PT Telekomunikasi Indonesia 10 - AS6389 7570 0.7% 2.1 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 11 - AS17488 7389 0.7% 5.7 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 12 - AS30890 7367 0.7% 17.1 -- EVOLVA Evolva Telecom s.r.l. 13 - AS36992 7336 0.7% 12.2 -- ETISALAT-MISR 14 - AS9829 7155 0.7% 18.6 -- BSNL-NIB National Internet Backbone 15 - AS35805 6929 0.6% 11.0 -- UTG-AS United Telecom AS 16 - AS3549 6595 0.6% 80.4 -- GBLX Global Crossing Ltd. 17 - AS10697 5894 0.5% 267.9 -- Interlink S.R.L. 18 - AS5786 5877 0.5% 31.8 -- UPRENET - University of Puerto Rico 19 - AS20115 5456 0.5% 7.0 -- CHARTER-NET-HKY-NC - Charter Communications 20 - AS9394 5391 0.5% 5.1 -- CRNET CHINA RAILWAY Internet(CRNET) TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASN Upds % Upds/Pfx AS-Name 1 - AS50788 2657 0.2% 2657.0 -- OSYPENKO-AS FOP Osypenko Vitalij Volodymyrovych 2 - AS32528 9270 0.8% 1854.0 -- ABBOTT Abbot Labs 3 - AS48754 1784 0.2% 1784.0 -- SOBIS-AS SC SOBIS SOLUTIONS SRL 4 - AS38680 1531 0.1% 1531.0 -- CMBHK-AS-KR CMB 5 - AS28477 10079 0.9% 1119.9 -- Universidad Autonoma del Esstado de Morelos 6 - AS27067 2170 0.2% 1085.0 -- DNIC-ASBLK-27032-27159 - DoD Network Information Center 7 - AS18399 3901 0.3% 975.2 -- BAGAN-TRANSIT-AS Bagan Cybertech IDC & Teleport International Transit 8 - AS11613 778 0.1% 778.0 -- U-SAVE - U-Save Auto Rental of America, Inc. 9 - AS29493 711 0.1% 711.0 -- GRIDPNPI Institution of Russian Science Academy Petersburg Nuclear Physics Institute of B.P. Konstantinov RAN 10 - AS39342 602 0.1% 602.0 -- MEDIATRAFFIC Mediatraffic Oy as-number 11 - AS28052 522 0.1% 522.0 -- Arte Radiotelevisivo Argentino 12 - AS47348 452 0.0% 452.0 -- PEACE_GLOBAL Peace Global Satellite Communications Limited 13 - AS5573 1697 0.1% 424.2 -- KRASNET-AS KRASNET Regional Telecommunications Network 14 - AS10445 2456 0.2% 409.3 -- HTG - Huntleigh Telcom 15 - AS9120 407 0.0% 407.0 -- COHAESIONET Cohaesio A/S 16 - AS39984 374 0.0% 374.0 -- STARZENTERTAINMENT - Starz Entertainment Group LLC 17 - AS37144 358 0.0% 358.0 -- VALUCARD-NG 18 - AS34205 315 0.0% 315.0 -- MRBD-AS Far East Telecommunications Company 19 - AS50037 299 0.0% 299.0 -- SERVERKURSK-AS Server Ltd. 20 - AS30402 575 0.1% 287.5 -- HARRIS - Harris Interactive Inc. TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 58.207.96.0/19 10746 0.9% AS4538 -- ERX-CERNET-BKB China Education and Research Network Center 2 - 200.13.36.0/24 10055 0.8% AS28477 -- Universidad Autonoma del Esstado de Morelos 3 - 64.76.40.0/24 6122 0.5% AS3549 -- GBLX Global Crossing Ltd. 4 - 130.36.34.0/24 4602 0.4% AS32528 -- ABBOTT Abbot Labs 5 - 130.36.35.0/24 4602 0.4% AS32528 -- ABBOTT Abbot Labs 6 - 203.81.166.0/24 3071 0.3% AS18399 -- BAGAN-TRANSIT-AS Bagan Cybertech IDC & Teleport International Transit 7 - 143.138.107.0/24 3025 0.2% AS747 -- TAEGU-AS - Headquarters, USAISC 8 - 206.184.16.0/24 3001 0.2% AS174 -- COGENT Cogent/PSI 9 - 200.50.186.0/24 2847 0.2% AS10697 -- Interlink S.R.L. 10 - 200.50.187.0/24 2811 0.2% AS10697 -- Interlink S.R.L. 11 - 193.107.224.0/22 2657 0.2% AS50788 -- OSYPENKO-AS FOP Osypenko Vitalij Volodymyrovych 12 - 111.68.29.0/24 2331 0.2% AS45324 -- GMEDIA-AS-ID Global Media Teknologi, PT AS4800 -- LINTASARTA-AS-AP Network Access Provider and Internet Service Provider 13 - 91.212.23.0/24 1784 0.1% AS48754 -- SOBIS-AS SC SOBIS SOLUTIONS SRL 14 - 180.233.225.0/24 1531 0.1% AS38680 -- CMBHK-AS-KR CMB 15 - 202.92.235.0/24 1461 0.1% AS9498 -- BBIL-AP BHARTI Airtel Ltd. 16 - 214.13.40.0/21 1240 0.1% AS5800 -- DNIC-ASBLK-05800-06055 - DoD Network Information Center 17 - 214.27.74.0/23 1154 0.1% AS5800 -- DNIC-ASBLK-05800-06055 - DoD Network Information Center 18 - 213.228.107.0/24 1141 0.1% AS5573 -- KRASNET-AS KRASNET Regional Telecommunications Network 19 - 124.14.64.0/18 1090 0.1% AS4847 -- CNIX-AP China Networks Inter-Exchange 20 - 220.113.32.0/20 1090 0.1% AS4847 -- CNIX-AP China Networks Inter-Exchange Details at http://bgpupdates.potaroo.net ------------------------------------ Copies of this report are mailed to: nanog@merit.edu eof-list@ripe.net apops@apops.net routing-wg@ripe.net afnog@afnog.org