BGP Update Report Interval: 29-Apr-10 -to- 06-May-10 (7 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASN Upds % Upds/Pfx AS-Name 1 - AS17488 61957 4.8% 53.7 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 2 - AS9498 25882 2.0% 41.4 -- BBIL-AP BHARTI Airtel Ltd. 3 - AS9829 22482 1.7% 24.0 -- BSNL-NIB National Internet Backbone 4 - AS9583 17345 1.3% 46.0 -- SIFY-AS-IN Sify Limited 5 - AS18207 15776 1.2% 52.8 -- IQARA-INDIA-AP Iqara Telecom India Pvt Ltd. 6 - AS35805 13424 1.0% 21.7 -- UTG-AS United Telecom AS 7 - AS30890 13274 1.0% 31.1 -- EVOLVA Evolva Telecom s.r.l. 8 - AS8386 12219 0.9% 152.7 -- KOCNET KOCNET-AS 9 - AS4538 10782 0.8% 399.3 -- ERX-CERNET-BKB China Education and Research Network Center 10 - AS29049 10767 0.8% 37.0 -- DELTA-TELECOM-AS Delta Telecom LTD. 11 - AS28477 10597 0.8% 10597.0 -- Universidad Autonoma del Esstado de Morelos 12 - AS36992 10094 0.8% 15.6 -- ETISALAT-MISR 13 - AS7633 8992 0.7% 62.0 -- SOFTNET-AS-AP Software Technology Parks of India - Bangalore 14 - AS14420 7871 0.6% 19.0 -- CORPORACION NACIONAL DE TELECOMUNICACIONES CNT S.A. 15 - AS9198 7660 0.6% 32.5 -- KAZTELECOM-AS JSC Kazakhtelecom 16 - AS8452 7497 0.6% 10.5 -- TEDATA TEDATA 17 - AS22047 7494 0.6% 57.6 -- VTR BANDA ANCHA S.A. 18 - AS5800 7444 0.6% 36.5 -- DNIC-ASBLK-05800-06055 - DoD Network Information Center 19 - AS12479 7438 0.6% 275.5 -- UNI2-AS Uni2 - Lince telecomunicaciones 20 - AS8151 6857 0.5% 11.8 -- Uninet S.A. de C.V. TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASN Upds % Upds/Pfx AS-Name 1 - AS28477 10597 0.8% 10597.0 -- Universidad Autonoma del Esstado de Morelos 2 - AS47346 3376 0.3% 3376.0 -- ELECOM-NT-AS Elecom-NT LLC 3 - AS13004 2646 0.2% 2646.0 -- SOX Serbian Open Exchange 4 - AS26025 2229 0.2% 2229.0 -- COC - City of Calgary 5 - AS16569 2217 0.2% 2217.0 -- ASN-CITY-OF-CALGARY - City of Calgary 6 - AS48754 1547 0.1% 1547.0 -- SOBIS-AS SC SOBIS SOLUTIONS SRL 7 - AS38680 1375 0.1% 1375.0 -- CMBHK-AS-KR CMB 8 - AS3397 839 0.1% 839.0 -- DAVINCI - Davinci Broadband Inc. 9 - AS28671 757 0.1% 757.0 -- Konecta Telecomunicações Ltda 10 - AS11613 744 0.1% 744.0 -- U-SAVE - U-Save Auto Rental of America, Inc. 11 - AS30341 1837 0.1% 612.3 -- SCTA-ASN - South Central Telephone Association 12 - AS44663 580 0.0% 580.0 -- INFOPROCESS-PL-AS Infoprocess Solutions 13 - AS18399 2152 0.2% 538.0 -- BAGAN-TRANSIT-AS Bagan Cybertech IDC & Teleport International Transit 14 - AS4538 10782 0.8% 399.3 -- ERX-CERNET-BKB China Education and Research Network Center 15 - AS10445 2326 0.2% 387.7 -- HTG - Huntleigh Telcom 16 - AS28052 371 0.0% 371.0 -- Arte Radiotelevisivo Argentino 17 - AS38468 346 0.0% 346.0 -- YESBANK-IN ASN for YESBANK 18 - AS47593 345 0.0% 345.0 -- ATELECOM A-Telcom Ltd 19 - AS3505 684 0.1% 342.0 -- WINDSTREAM - Windstream Communications Inc 20 - AS36977 4971 0.4% 310.7 -- WARID-AS TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 58.207.96.0/19 10669 0.8% AS4538 -- ERX-CERNET-BKB China Education and Research Network Center 2 - 200.13.36.0/24 10597 0.8% AS28477 -- Universidad Autonoma del Esstado de Morelos 3 - 93.191.104.0/21 3376 0.2% AS47346 -- ELECOM-NT-AS Elecom-NT LLC 4 - 202.92.235.0/24 3338 0.2% AS9498 -- BBIL-AP BHARTI Airtel Ltd. 5 - 188.187.184.0/24 3241 0.2% AS41786 -- ERTH-YOLA-AS CJSC "Company "ER-Telecom" Yoshkar-Ola 6 - 206.184.16.0/24 2921 0.2% AS174 -- COGENT Cogent/PSI 7 - 193.105.163.0/24 2646 0.2% AS13004 -- SOX Serbian Open Exchange 8 - 85.60.194.0/23 2486 0.2% AS12479 -- UNI2-AS Uni2 - Lince telecomunicaciones 9 - 143.138.107.0/24 2288 0.2% AS747 -- TAEGU-AS - Headquarters, USAISC 10 - 208.98.231.0/24 2229 0.2% AS26025 -- COC - City of Calgary 11 - 208.98.230.0/24 2217 0.2% AS16569 -- ASN-CITY-OF-CALGARY - City of Calgary 12 - 203.81.166.0/24 2068 0.1% AS18399 -- BAGAN-TRANSIT-AS Bagan Cybertech IDC & Teleport International Transit 13 - 85.60.192.0/23 1570 0.1% AS12479 -- UNI2-AS Uni2 - Lince telecomunicaciones 14 - 91.212.23.0/24 1547 0.1% AS48754 -- SOBIS-AS SC SOBIS SOLUTIONS SRL 15 - 180.233.225.0/24 1375 0.1% AS38680 -- CMBHK-AS-KR CMB 16 - 90.150.0.0/24 1236 0.1% AS35400 -- MFIST Interregoinal Organization Network Technologies 17 - 85.60.208.0/21 1112 0.1% AS12479 -- UNI2-AS Uni2 - Lince telecomunicaciones 18 - 205.91.160.0/20 1106 0.1% AS5976 -- DNIC-ASBLK-05800-06055 - DoD Network Information Center 19 - 85.60.208.0/22 1100 0.1% AS12479 -- UNI2-AS Uni2 - Lince telecomunicaciones 20 - 220.113.32.0/20 952 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