BGP Update Report Interval: 20-Oct-08 -to- 20-Nov-08 (32 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASN Upds % Upds/Pfx AS-Name 1 - AS4538 193657 1.6% 38.1 -- ERX-CERNET-BKB China Education and Research Network Center 2 - AS9583 193365 1.6% 162.9 -- SIFY-AS-IN Sify Limited 3 - AS10396 143531 1.2% 2474.7 -- COQUI-NET - DATACOM CARIBE, INC. 4 - AS6389 130827 1.1% 29.6 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 5 - AS1803 85966 0.7% 60.6 -- ICMNET-5 - Sprint 6 - AS6629 84544 0.7% 1300.7 -- NOAA-AS - NOAA 7 - AS209 73219 0.6% 23.3 -- ASN-QWEST - Qwest Communications Corporation 8 - AS29282 69396 0.6% 23132.0 -- EMENTOR-AS Enfo Oyj 9 - AS20115 67855 0.6% 29.0 -- CHARTER-NET-HKY-NC - Charter Communications 10 - AS23126 64248 0.6% 275.7 -- CENTURYTEL-SOLUTIONS-LLC - CenturyTel Solutions, LLC 11 - AS8151 55648 0.5% 39.3 -- Uninet S.A. de C.V. 12 - AS6298 52709 0.5% 24.6 -- ASN-CXA-PH-6298-CBS - Cox Communications Inc. 13 - AS2386 50591 0.4% 30.5 -- INS-AS - AT&T Data Communications Services 14 - AS1785 48678 0.4% 28.3 -- AS-PAETEC-NET - PaeTec Communications, Inc. 15 - AS34116 47022 0.4% 470.2 -- CYBER-AS Cyber Net AS 16 - AS6458 46003 0.4% 114.2 -- Telgua 17 - AS14106 45697 0.4% 22848.5 -- LEPMED01 - Leprechaun, LLC 18 - AS6478 45085 0.4% 26.7 -- ATT-INTERNET3 - AT&T WorldNet Services 19 - AS7018 44569 0.4% 30.2 -- ATT-INTERNET4 - AT&T WorldNet Services 20 - AS7643 42615 0.4% 27.9 -- VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASN Upds % Upds/Pfx AS-Name 1 - AS29282 69396 0.6% 23132.0 -- EMENTOR-AS Enfo Oyj 2 - AS14106 45697 0.4% 22848.5 -- LEPMED01 - Leprechaun, LLC 3 - AS43299 9709 0.1% 9709.0 -- TELECONTACT-AS Telecontact Ltd. 4 - AS30287 6429 0.1% 6429.0 -- ALON-USA - ALON USA, LP 5 - AS22492 13574 0.1% 4524.7 -- 6 - AS40194 4209 0.0% 4209.0 -- INHOUSE-ASSOCIATES-LC - Inhouse Associates, L.C. 7 - AS37026 7700 0.1% 3850.0 -- SALT-ASN 8 - AS14220 17992 0.1% 3598.4 -- I2A - I 20 Access 9 - AS14593 3497 0.0% 3497.0 -- BRAND-INSTITUTE - Brand Instiute, Inc. 10 - AS4130 16261 0.1% 3252.2 -- UPITT-AS - University of Pittsburgh 11 - AS25799 3250 0.0% 3250.0 -- HOLMAN - Holman Enterprises 12 - AS41007 15591 0.1% 3118.2 -- CTCASTANA CTC ASTANA, KZ 13 - AS5033 26266 0.2% 2918.4 -- ISW - Internet Specialties West Inc. 14 - AS28194 14074 0.1% 2814.8 -- 15 - AS30969 21480 0.2% 2685.0 -- TAN-NET TransAfrica Networks 16 - AS10396 143531 1.2% 2474.7 -- COQUI-NET - DATACOM CARIBE, INC. 17 - AS47731 2468 0.0% 2468.0 -- ISDC-AS SC ISDC ROMANIA SRL 18 - AS23917 2319 0.0% 2319.0 -- BRIBIE-NET-AS-AP Bribie Island Net Multihomed, Brisbane 19 - AS48131 2059 0.0% 2059.0 -- VANGUARD-BG-AS Vanguard SA 20 - AS22247 2005 0.0% 2005.0 -- LETOURNEAUUNIVERSITY - LeTourneau University TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 221.134.222.0/24 61640 0.5% AS9583 -- SIFY-AS-IN Sify Limited 2 - 210.214.151.0/24 57932 0.5% AS9583 -- SIFY-AS-IN Sify Limited 3 - 77.95.144.0/22 47824 0.4% AS29282 -- EMENTOR-AS Enfo Oyj 4 - 221.135.80.0/24 40588 0.3% AS9583 -- SIFY-AS-IN Sify Limited 5 - 192.102.88.0/24 26905 0.2% AS6629 -- NOAA-AS - NOAA 6 - 198.77.177.0/24 26549 0.2% AS6629 -- NOAA-AS - NOAA 7 - 192.35.129.0/24 26543 0.2% AS6629 -- NOAA-AS - NOAA 8 - 64.162.116.0/24 26051 0.2% AS5033 -- ISW - Internet Specialties West Inc. 9 - 8.192.154.0/24 24907 0.2% AS14106 -- LEPMED01 - Leprechaun, LLC 10 - 194.126.143.0/24 24674 0.2% AS9051 -- IDM Autonomous System 11 - 192.12.120.0/24 24632 0.2% AS5691 -- MITRE-AS-5 - The MITRE Corporation 12 - 217.69.48.0/20 21553 0.2% AS29282 -- EMENTOR-AS Enfo Oyj 13 - 65.44.76.0/24 20790 0.2% AS14106 -- LEPMED01 - Leprechaun, LLC 14 - 221.128.192.0/18 18168 0.1% AS18231 -- EXATT-AS-AP IOL NETCOM LTD 15 - 150.212.224.0/19 16152 0.1% AS4130 -- UPITT-AS - University of Pittsburgh 16 - 200.33.104.0/23 13714 0.1% AS21603 -- Universidad La Salle, AC 17 - 12.2.46.0/24 13530 0.1% AS22492 -- 18 - 89.4.131.0/24 12531 0.1% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 19 - 203.63.26.0/24 11031 0.1% AS9747 -- EZINTERNET-AS-AP EZInternet Pty Ltd 20 - 196.27.104.0/21 10409 0.1% AS30969 -- TAN-NET TransAfrica Networks 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