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 ASN Upds % Upds/Pfx AS-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 - AS6629 49189 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 - AS6458 28143 0.6% 58.3 -- Telgua 8 - AS30306 25107 0.6% 6276.8 -- AfOL-Sz-AS 9 - AS5050 24109 0.6% 408.6 -- PSC-EXT - Pittsburgh Supercomputing Center 10 - AS8452 22589 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 - AS6389 19952 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 - AS8151 19180 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 ASN Upds % Upds/Pfx AS-Name 1 - AS30287 7838 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 - AS41382 3264 0.1% 3264.0 -- TELEPORT-AS Teleport LLC Network AS 5 - AS30969 20102 0.5% 2512.8 -- TAN-NET TransAfrica Networks 6 - AS28194 7118 0.2% 2372.7 -- 7 - AS23917 2237 0.1% 2237.0 -- BRIBIE-NET-AS-AP Bribie Island Net Multihomed, Brisbane 8 - AS19017 2085 0.1% 2085.0 -- QUALCOMM-QWBS-LV - Qualcomm, Inc. 9 - AS5033 16305 0.4% 1811.7 -- ISW - Internet Specialties West Inc. 10 - AS10806 6266 0.1% 1566.5 -- AFP-NET - AGENCE FRANCE PRESSE 11 - AS16559 15253 0.3% 1525.3 -- REALCONNECT-01 - RealConnect, Inc 12 - AS29427 2706 0.1% 1353.0 -- AZM-AS Mercury Telecom 13 - AS45122 1318 0.0% 1318.0 -- JASPACE-AS-ID-AP PT. JASPACE NET 14 - AS32398 11831 0.3% 1314.6 -- REALNET-ASN-1 15 - AS30095 2584 0.1% 1292.0 -- AS-30095 - Group M Worldwide, Inc. 16 - AS48129 1268 0.0% 1268.0 -- IRBIS-TELECOMMUNICATIONS-AS IRBIS Telecommunications Ltd. 17 - AS25970 7548 0.2% 1258.0 -- IAC - IAC Services LLC 18 - AS44265 13244 0.3% 1204.0 -- SMOLTELECOM-NET Smoltelecom Ltd AS peering 19 - AS29224 2402 0.1% 1201.0 -- HELLMANN Hellmann Worldwide Logistics GmbH & Co KG 20 - AS35335 1123 0.0% 1123.0 -- ESSTU-AS East-Siberian State Technological University AS TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 72.23.246.0/24 23883 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 - 124.7.201.0/24 11454 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 - 196.27.104.0/21 9856 0.2% AS30969 -- TAN-NET TransAfrica Networks 18 - 196.27.108.0/22 9795 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 Limited 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