BGP Update Report Interval: 22-Jul-10 -to- 29-Jul-10 (7 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASN Upds % Upds/Pfx AS-Name 1 - AS4725 42987 2.5% 333.2 -- ODN SOFTBANK TELECOM Corp. 2 - AS25620 25906 1.5% 155.1 -- COTAS LTDA. 3 - AS30890 23547 1.4% 52.7 -- EVOLVA Evolva Telecom s.r.l. 4 - AS5536 17248 1.0% 155.4 -- Internet-Egypt 5 - AS4538 16596 1.0% 56.6 -- ERX-CERNET-BKB China Education and Research Network Center 6 - AS35805 13596 0.8% 20.7 -- SILKNET-AS SILKNET AS 7 - AS14420 13130 0.8% 24.1 -- CORPORACION NACIONAL DE TELECOMUNICACIONES - CNT EP 8 - AS35931 12653 0.7% 2108.8 -- ARCHIPELAGO - ARCHIPELAGO HOLDINGS INC 9 - AS8452 12390 0.7% 10.5 -- TEDATA TEDATA 10 - AS6389 12249 0.7% 3.1 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 11 - AS16526 11337 0.7% 68.7 -- BIRCH-TELECOM - Birch Telecom, Inc. 12 - AS9829 11077 0.7% 13.6 -- BSNL-NIB National Internet Backbone 13 - AS48754 10172 0.6% 10172.0 -- SOBIS-AS SOBIS SOLUTIONS SRL 14 - AS4323 9027 0.5% 3.2 -- TWTC - tw telecom holdings, inc. 15 - AS8151 8956 0.5% 5.8 -- Uninet S.A. de C.V. 16 - AS45464 8700 0.5% 202.3 -- NEXTWEB-AS-AP Room 201, TGU Bldg 17 - AS3816 8541 0.5% 16.6 -- COLOMBIA TELECOMUNICACIONES S.A. ESP 18 - AS11492 8475 0.5% 7.2 -- CABLEONE - CABLE ONE, INC. 19 - AS5800 8120 0.5% 40.4 -- DNIC-ASBLK-05800-06055 - DoD Network Information Center 20 - AS210 8069 0.5% 7.2 -- WEST-NET-WEST - Utah Education Network TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASN Upds % Upds/Pfx AS-Name 1 - AS48754 10172 0.6% 10172.0 -- SOBIS-AS SOBIS SOLUTIONS SRL 2 - AS19174 5197 0.3% 5197.0 -- CNC-USA - China Netcom (USA) Operations Ltd. 3 - AS25090 2415 0.1% 2415.0 -- EOS-AS Energie Ouest Suisse Autonomous System 4 - AS35931 12653 0.7% 2108.8 -- ARCHIPELAGO - ARCHIPELAGO HOLDINGS INC 5 - AS23670 1757 0.1% 1757.0 -- OZSERVERS-AU Oz Servers, Data Centres, Australia Wide 6 - AS29843 6886 0.4% 1147.7 -- FIVEA-AS1 - FIVE AREA SYSTEMS, INC 7 - AS8792 893 0.1% 893.0 -- ASVNET Axel Springer Verlag AG 8 - AS11613 748 0.0% 748.0 -- U-SAVE - U-Save Auto Rental of America, Inc. 9 - AS32528 5369 0.3% 671.1 -- ABBOTT Abbot Labs 10 - AS30600 1988 0.1% 497.0 -- AS-CMN - Cinergy Metronet, Inc. 11 - AS47593 402 0.0% 402.0 -- ATELECOM A-Telcom Ltd 12 - AS38467 394 0.0% 394.0 -- DBAMOYLAN-TRANSIT-AS-AP DBA Moylan 13 - AS44630 389 0.0% 389.0 -- A1799-AS A1799 Military Unit 14 - AS7513 381 0.0% 381.0 -- NETFORWARD Hitachi Information Systems, Ltd. 15 - AS7677 379 0.0% 379.0 -- DNP Dai Nippon Printing Co., Ltd 16 - AS7517 754 0.0% 377.0 -- MII ICOMT Inc. 17 - AS48275 374 0.0% 374.0 -- TSMS-ABKHAZIA-AS Technical Service of Trunk Communications of UPI and SMK of the President of Republic of Abkhazia 18 - AS9352 1080 0.1% 360.0 -- KUMAGAYA KuMaGaYaNet 19 - AS38063 359 0.0% 359.0 -- SANMEDIA-AS SANMEDIA Corporation, Local ISP in JAPAN YONAGO 20 - AS24289 1795 0.1% 359.0 -- KBN Kagawa T.V Broadcast Network Co,.Ltd TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 91.212.23.0/24 10172 0.5% AS48754 -- SOBIS-AS SOBIS SOLUTIONS SRL 2 - 198.140.43.0/24 6980 0.3% AS35931 -- ARCHIPELAGO - ARCHIPELAGO HOLDINGS INC 3 - 190.65.228.0/22 6027 0.3% AS3816 -- COLOMBIA TELECOMUNICACIONES S.A. ESP 4 - 63.211.68.0/22 5647 0.3% AS35931 -- ARCHIPELAGO - ARCHIPELAGO HOLDINGS INC 5 - 207.254.176.0/20 5197 0.2% AS19174 -- CNC-USA - China Netcom (USA) Operations Ltd. 6 - 41.34.29.0/24 4202 0.2% AS8452 -- TEDATA TEDATA 7 - 206.184.16.0/24 3146 0.1% AS174 -- COGENT Cogent/PSI 8 - 130.36.34.0/24 2600 0.1% AS32528 -- ABBOTT Abbot Labs 9 - 130.36.35.0/24 2598 0.1% AS32528 -- ABBOTT Abbot Labs 10 - 202.92.235.0/24 2440 0.1% AS9498 -- BBIL-AP BHARTI Airtel Ltd. 11 - 193.8.222.0/24 2415 0.1% AS25090 -- EOS-AS Energie Ouest Suisse Autonomous System 12 - 129.66.0.0/17 1918 0.1% AS3464 -- ASC-NET - Alabama Supercomputer Network 13 - 129.66.128.0/17 1913 0.1% AS3464 -- ASC-NET - Alabama Supercomputer Network 14 - 117.20.0.0/24 1757 0.1% AS23670 -- OZSERVERS-AU Oz Servers, Data Centres, Australia Wide 15 - 143.138.107.0/24 1590 0.1% AS747 -- TAEGU-AS - Headquarters, USAISC 16 - 63.99.80.0/21 1377 0.1% AS29843 -- FIVEA-AS1 - FIVE AREA SYSTEMS, INC 17 - 63.99.88.0/22 1377 0.1% AS29843 -- FIVEA-AS1 - FIVE AREA SYSTEMS, INC 18 - 65.216.40.0/21 1377 0.1% AS29843 -- FIVEA-AS1 - FIVE AREA SYSTEMS, INC 19 - 63.96.42.0/23 1377 0.1% AS29843 -- FIVEA-AS1 - FIVE AREA SYSTEMS, INC 20 - 216.229.112.0/20 1377 0.1% AS29843 -- FIVEA-AS1 - FIVE AREA SYSTEMS, INC 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