BGP Update Report Interval: 02-Mar-09 -to- 02-Apr-09 (32 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASN Upds % Upds/Pfx AS-Name 1 - AS9583 104066 2.4% 96.4 -- SIFY-AS-IN Sify Limited 2 - AS6629 43772 1.0% 7295.3 -- NOAA-AS - NOAA 3 - AS3130 39483 0.9% 303.7 -- RGNET-3130 RGnet/PSGnet 4 - AS9498 37206 0.9% 54.0 -- BBIL-AP BHARTI Airtel Ltd. 5 - AS4771 31946 0.7% 121.5 -- NZTELECOM Netgate 6 - AS4434 31818 0.7% 815.8 -- ERX-RADNET1-AS PT Rahajasa Media Internet 7 - AS6458 30254 0.7% 75.3 -- Telgua 8 - AS12978 28541 0.7% 158.6 -- DOGAN-ONLINE Dogan Iletisim Elektronik Servis Hizmetleri AS 9 - AS5056 28078 0.7% 242.1 -- INS-NET-2 - Iowa Network Services 10 - AS29372 27064 0.6% 304.1 -- SFR-NETWORK SFR 11 - AS5050 24782 0.6% 2478.2 -- PSC-EXT - Pittsburgh Supercomputing Center 12 - AS23966 23980 0.6% 59.8 -- LDN-AS-AP LINKdotNET Telecom Limited 13 - AS35805 23477 0.5% 73.4 -- UTG-AS United Telecom AS 14 - AS7643 22746 0.5% 20.1 -- VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) 15 - AS4648 22663 0.5% 111.1 -- NZIX-2 Netgate 16 - AS17557 22333 0.5% 66.1 -- PKTELECOM-AS-AP Pakistan Telecom 17 - AS17488 21298 0.5% 14.4 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 18 - AS29049 19471 0.5% 59.0 -- DELTA-TELECOM-AS Delta Telecom LTD. 19 - AS17974 19153 0.4% 30.9 -- TELKOMNET-AS2-AP PT Telekomunikasi Indonesia 20 - AS7545 19000 0.4% 23.2 -- TPG-INTERNET-AP TPG Internet Pty Ltd TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASN Upds % Upds/Pfx AS-Name 1 - AS6629 43772 1.0% 7295.3 -- NOAA-AS - NOAA 2 - AS19017 5078 0.1% 5078.0 -- QUALCOMM-QWBS-LV - Qualcomm, Inc. 3 - AS8225 4678 0.1% 4678.0 -- ASTELIT-MSK-AS Astelit Autonomous System 4 - AS46653 13420 0.3% 4473.3 -- FREDRIKSON---BYRON - Fredrikson & Byron, P.A. 5 - AS28194 4227 0.1% 4227.0 -- 6 - AS7717 17693 0.4% 3538.6 -- OPENIXP-AS-ID-AP OpenIXP ASN 7 - AS6312 3283 0.1% 3283.0 -- WESTWORLD-AS - WestWorld Media, LLC 8 - AS41343 5906 0.1% 2953.0 -- TRIUNFOTEL-ASN TRIUNFOTEL 9 - AS5691 10368 0.2% 2592.0 -- MITRE-AS-5 - The MITRE Corporation 10 - AS30306 10145 0.2% 2536.2 -- AfOL-Sz-AS 11 - AS5050 24782 0.6% 2478.2 -- PSC-EXT - Pittsburgh Supercomputing Center 12 - AS8755 2065 0.1% 2065.0 -- CITYLINESPB-AS CityLine-SPb Autonomous System 13 - AS30552 1981 0.1% 1981.0 -- SAINT-JOSEPHS-HOSPITAL-OF-ATLANTA - Saint Joseph's Hospital of Atlanta 14 - AS32398 14773 0.3% 1846.6 -- REALNET-ASN-1 15 - AS42291 6832 0.2% 1708.0 -- ISTRANET-AS Istranet LLC 16 - AS46328 15184 0.3% 1687.1 -- PTCNEBRASKA - PIERCE TELEPHONE COMPANY, INCORPORATED 17 - AS14223 3081 0.1% 1540.5 -- NYSDOH - New York State Department of Health 18 - AS20925 4468 0.1% 1489.3 -- RESEAU-DANZAS DANZAS Autonomous System 19 - AS30520 5756 0.1% 1439.0 -- NUANCE-SOMERVILLE - NUANCE COMMUNICATIONS, INC 20 - AS40344 1379 0.0% 1379.0 -- PROSK-1 - Pro Sky Wireless TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 72.23.246.0/24 24682 0.5% AS5050 -- PSC-EXT - Pittsburgh Supercomputing Center 2 - 121.101.184.0/24 17606 0.4% AS38785 -- BAGUSNET-AS-ID PT. BORNEO BROADBAND TECHNOLOGY AS7717 -- OPENIXP-AS-ID-AP OpenIXP ASN 3 - 192.35.129.0/24 14652 0.3% AS6629 -- NOAA-AS - NOAA 4 - 41.204.2.0/24 14602 0.3% AS32398 -- REALNET-ASN-1 5 - 192.102.88.0/24 14558 0.3% AS6629 -- NOAA-AS - NOAA 6 - 198.77.177.0/24 14550 0.3% AS6629 -- NOAA-AS - NOAA 7 - 199.45.13.0/24 13396 0.3% AS46653 -- FREDRIKSON---BYRON - Fredrikson & Byron, P.A. 8 - 222.255.51.64/26 10746 0.2% AS7643 -- VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) 9 - 192.12.120.0/24 10352 0.2% AS5691 -- MITRE-AS-5 - The MITRE Corporation 10 - 210.214.222.0/24 8555 0.2% AS9583 -- SIFY-AS-IN Sify Limited 11 - 221.135.105.0/24 8528 0.2% AS9583 -- SIFY-AS-IN Sify Limited 12 - 210.214.232.0/24 8505 0.2% AS9583 -- SIFY-AS-IN Sify Limited 13 - 210.214.156.0/24 8473 0.2% AS9583 -- SIFY-AS-IN Sify Limited 14 - 210.214.177.0/24 8427 0.2% AS9583 -- SIFY-AS-IN Sify Limited 15 - 210.214.184.0/24 8377 0.2% AS9583 -- SIFY-AS-IN Sify Limited 16 - 210.214.132.0/24 8357 0.2% AS9583 -- SIFY-AS-IN Sify Limited 17 - 210.214.146.0/24 8332 0.2% AS9583 -- SIFY-AS-IN Sify Limited 18 - 210.210.127.0/24 8252 0.2% AS9583 -- SIFY-AS-IN Sify Limited 19 - 210.214.117.0/24 8238 0.2% AS9583 -- SIFY-AS-IN Sify Limited 20 - 202.92.235.0/24 7992 0.2% AS9498 -- BBIL-AP BHARTI Airtel Ltd. 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