BGP Update Report Interval: 30-Mar-07 -to- 12-Apr-07 (14 days) Observation Point: BGP Peering with AS4637 TOP 20 Unstable Origin AS Rank ASN Upds % Upds/Pfx AS-Name 1 - AS9121 33665 3.0% 33.2 -- TTNET TTnet Autonomous System 2 - AS17974 27902 2.5% 102.6 -- TELKOMNET-AS2-AP PT TELEKOMUNIKASI INDONESIA 3 - AS9829 18425 1.6% 85.7 -- BSNL-NIB National Internet Backbone 4 - AS306 14447 1.3% 79.4 -- DNIC - DoD Network Information Center 5 - AS24731 13737 1.2% 305.3 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 6 - AS5786 10301 0.9% 65.2 -- UPRENET - University of Puerto Rico 7 - AS4775 9535 0.8% 80.8 -- GLOBE-TELECOM-AS Telecom Carrier / ISP Plus + 8 - AS8447 9171 0.8% 129.2 -- TELEKOM-AT Telekom Austria AutonomousSystem 9 - AS9583 8859 0.8% 9.7 -- SIFY-AS-IN Sify Limited 10 - AS5803 7429 0.7% 78.2 -- DDN-ASNBLK - DoD Network Information Center 11 - AS702 7327 0.7% 27.9 -- AS702 Verizon Business EMEA - Commercial IP service provider in Europe 12 - AS4249 6907 0.6% 51.5 -- LILLY-AS - Eli Lilly and Company 13 - AS22291 6906 0.6% 14.2 -- CHARTER-LA - Charter Communications 14 - AS17645 6609 0.6% 600.8 -- NTT-SG-AP ASN - NTT SINGAPORE PTE LTD 15 - AS17557 6096 0.6% 16.3 -- PKTELECOM-AS-AP Pakistan Telecom 16 - AS25233 6069 0.5% 83.1 -- AWALNET-ASN Autonomus System number for Awalnet 17 - AS12654 6068 0.5% 148.0 -- RIPE-NCC-RIS-AS RIPE NCC RIS project 18 - AS30890 5852 0.5% 28.3 -- EVOLVA Evolva Telecom 19 - AS19108 5720 0.5% 15.3 -- SUDDENLINK-COMMUNICATIONS - Suddenlink Communications 20 - AS36487 5682 0.5% 811.7 -- NEB-SANDHILLS-NET - Consolidated Telephone Company TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASN Upds % Upds/Pfx AS-Name 1 - AS31594 4114 0.4% 4114.0 -- FORTESS-AS Fortess LLC Network 2 - AS3043 1373 0.1% 1373.0 -- AMPHIB-AS - Amphibian Media Corporation 3 - AS38077 5344 0.5% 1336.0 -- TIMOR-TELECOM-AS-AP Timor Telecom, SA 4 - AS29700 2698 0.2% 899.3 -- CYPRESS-SEMICONDUCTOR - Cypress Semiconductor 5 - AS34378 850 0.1% 850.0 -- RUG-AS Razguliay-UKRROS Group 6 - AS5609 1644 0.1% 822.0 -- ASN-CSELT # AS-CSELT CONVERTED TO ASN-CSELT FOR RPSL COMPLIANCE CSELT S.p.A. is a Research Center for the study, research, 7 - AS9747 1642 0.1% 821.0 -- EZINTERNET-AS-AP EZInternet Pty Ltd 8 - AS36487 5682 0.5% 811.7 -- NEB-SANDHILLS-NET - Consolidated Telephone Company 9 - AS1708 1599 0.1% 799.5 -- FR-CNET-ISSY - Centre National d'Etudes des Telecommunication -- CNET 10 - AS30707 1598 0.1% 799.0 -- 11 - AS11828 3326 0.3% 665.2 -- SOINET - State of Illinois/CMS 12 - AS12408 625 0.1% 625.0 -- BIKENT-AS Bikent Ltd. Autonomous system 13 - AS32761 616 0.1% 616.0 -- WASSE-NYC - Wasserstein & Co. 14 - AS17645 6609 0.6% 600.8 -- NTT-SG-AP ASN - NTT SINGAPORE PTE LTD 15 - AS3944 558 0.1% 558.0 -- PARTAN-LAB - Partan & Partan 16 - AS19760 532 0.1% 532.0 -- CALPINECORP-1 - CALPINE CORP 17 - AS41555 528 0.1% 528.0 -- NOVATKL-AS FW Austria, Kundl 18 - AS14346 3076 0.3% 512.7 -- S.A O Estado de Sao Paulo 19 - AS33188 1012 0.1% 506.0 -- SCS-NETWORK-1 - Sono Corporate Suites 20 - AS17555 498 0.0% 498.0 -- SPRINGFIELD-AS-AP Springfield NOC TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 81.213.47.0/24 7290 0.5% AS9121 -- TTNET TTnet Autonomous System 2 - 81.212.197.0/24 6726 0.5% AS9121 -- TTNET TTnet Autonomous System 3 - 194.242.124.0/22 4114 0.3% AS31594 -- FORTESS-AS Fortess LLC Network 4 - 59.94.240.0/20 4042 0.3% AS9829 -- BSNL-NIB National Internet Backbone 5 - 59.94.192.0/20 4042 0.3% AS9829 -- BSNL-NIB National Internet Backbone 6 - 59.95.240.0/20 4042 0.3% AS9829 -- BSNL-NIB National Internet Backbone 7 - 59.94.160.0/20 4042 0.3% AS9829 -- BSNL-NIB National Internet Backbone 8 - 81.212.39.0/24 3728 0.3% AS9121 -- TTNET TTnet Autonomous System 9 - 89.4.131.0/24 3417 0.2% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 10 - 89.4.129.0/24 3378 0.2% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 11 - 89.4.128.0/24 3357 0.2% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 12 - 163.191.160.0/19 3319 0.2% AS11828 -- SOINET - State of Illinois/CMS 13 - 89.4.130.0/24 3218 0.2% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 14 - 81.212.141.0/24 2874 0.2% AS9121 -- TTNET TTnet Autonomous System 15 - 203.177.8.0/24 2347 0.2% AS4775 -- GLOBE-TELECOM-AS Telecom Carrier / ISP Plus + 16 - 80.243.64.0/20 2326 0.2% AS21332 -- NTC-AS New Telephone Company 17 - 203.177.132.0/24 2311 0.2% AS4775 -- GLOBE-TELECOM-AS Telecom Carrier / ISP Plus + 18 - 203.177.10.0/24 2306 0.2% AS4775 -- GLOBE-TELECOM-AS Telecom Carrier / ISP Plus + 19 - 202.136.182.0/24 2202 0.2% AS17645 -- NTT-SG-AP ASN - NTT SINGAPORE PTE LTD 20 - 202.136.176.0/24 2200 0.2% AS17645 -- NTT-SG-AP ASN - NTT SINGAPORE PTE 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 ausnog@ausnog.net