BGP Update Report Interval: 20-Aug-09 -to- 27-Aug-09 (7 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASN Upds % Upds/Pfx AS-Name 1 - AS9198 89505 4.2% 260.9 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 2 - AS4961 78920 3.7% 1337.6 -- DISC-AS-KR Daewoo Information System 3 - AS9767 50782 2.4% 1372.5 -- DONGBUIT-AS-KR Dongbulife Insurance co.,LTD 4 - AS23716 46768 2.2% 1670.3 -- CHANGWON23716-AS-KR Changwon College 5 - AS30890 36929 1.7% 76.1 -- EVOLVA Evolva Telecom / iLink Telecom 6 - AS18157 33964 1.6% 1358.6 -- CHUNGJU-AS-KR chungju university 7 - AS9956 31164 1.5% 1355.0 -- KONGJU-AS kongju national university 8 - AS9459 30310 1.4% 1317.8 -- ASKONKUK Konkuk University 9 - AS9686 29346 1.4% 1333.9 -- SKKUNET-AS SungKyunKwan University (SKKU) 10 - AS10159 22554 1.1% 1326.7 -- HAUNET-AS-KR HANKUK Aviation University 11 - AS33783 21632 1.0% 153.4 -- EEPAD 12 - AS9530 21240 1.0% 1327.5 -- SHINSEGAE-AS SHINSEGAE I&C Co., Ltd. 13 - AS9628 18322 0.9% 964.3 -- SSEM-AS-KR Seoul Education Science Research Institute 14 - AS17865 16830 0.8% 1683.0 -- SCOURT-AS-KR Supreme Court of Korea 15 - AS9868 16200 0.8% 1350.0 -- CUTH-AS Catholic University of DAEGU 16 - AS10088 14846 0.7% 1349.6 -- KWANGWOON-UNIV-AS-AP KWANGWOON University in Seoul, Korea 17 - AS9523 14644 0.7% 1627.1 -- MOKWON-AS-KR Mokwon University 18 - AS23561 14526 0.7% 1614.0 -- YONGINUNIVERSITY-AS-KR Yongin University 19 - AS18026 13874 0.7% 1387.4 -- CHEJU-AS-KR Cheju University 20 - AS35805 13857 0.7% 36.4 -- UTG-AS United Telecom AS TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASN Upds % Upds/Pfx AS-Name 1 - AS40060 2466 0.1% 2466.0 -- AAAWI - AAA Wireless, Inc. 2 - AS5050 5998 0.3% 1999.3 -- PSC-EXT - Pittsburgh Supercomputing Center 3 - AS17865 16830 0.8% 1683.0 -- SCOURT-AS-KR Supreme Court of Korea 4 - AS18303 1672 0.1% 1672.0 -- SMARTRO-AS-KR SMARTRO 5 - AS23716 46768 2.2% 1670.3 -- CHANGWON23716-AS-KR Changwon College 6 - AS10053 6660 0.3% 1665.0 -- AYTCNET-AS Anyang Technical College 7 - AS9570 3326 0.2% 1663.0 -- DAEDONG-AS-KR Daedong College 8 - AS38427 9936 0.5% 1656.0 -- STXIDC-AS-KR FORCETEC Co., LTD. 9 - AS18315 4942 0.2% 1647.3 -- SORABOLNET-AS-KR Sorabol College 10 - AS38683 1642 0.1% 1642.0 -- NEC-AS-KR National Electoin Commission 11 - AS9490 1634 0.1% 1634.0 -- NIS-AS National Intelligence Service 12 - AS4790 3264 0.1% 1632.0 -- CHOSUN-AS-KR DIGITAL CHOSUN 13 - AS9523 14644 0.7% 1627.1 -- MOKWON-AS-KR Mokwon University 14 - AS23561 14526 0.7% 1614.0 -- YONGINUNIVERSITY-AS-KR Yongin University 15 - AS9846 1610 0.1% 1610.0 -- FIRSTDATA-AS-KR FDIK 16 - AS4665 1602 0.1% 1602.0 -- YONSEI-AS-KR Yonsei University 17 - AS17600 1446 0.1% 1446.0 -- ENVICO-AS-KR Korea Environment & Resources Corporation 18 - AS9969 1412 0.1% 1412.0 -- WMS-NET-AS-KR KOREA RESOURCES RECOVERY AND REUTILIZATION CORPORATION 19 - AS9974 6970 0.3% 1394.0 -- KRA-AS-KR Korea Racing Association 20 - AS9949 9734 0.5% 1390.6 -- HOSEO-AS HOSEO UNIVERSITY TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 89.218.220.0/23 9641 0.4% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 2 - 89.218.218.0/23 9639 0.4% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 3 - 95.59.2.0/23 9636 0.4% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 4 - 92.46.244.0/23 9634 0.4% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 5 - 95.59.3.0/24 9634 0.4% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 6 - 95.59.8.0/23 9632 0.4% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 7 - 95.59.4.0/22 9632 0.4% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 8 - 88.204.221.0/24 9593 0.4% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 9 - 95.59.1.0/24 9583 0.4% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 10 - 72.23.246.0/24 5995 0.3% AS5050 -- PSC-EXT - Pittsburgh Supercomputing Center 11 - 84.1.45.0/24 4109 0.2% AS41313 -- NOVATEL-AS Novatel Bulgaria 12 - 193.201.184.0/21 3547 0.2% AS25546 -- BROOKLANDCOMP-AS Brookland Computer Services 13 - 196.216.8.0/21 2656 0.1% AS36913 -- BROADBAND-MALAWI 14 - 192.12.120.0/24 2585 0.1% AS5691 -- MITRE-AS-5 - The MITRE Corporation 15 - 85.60.208.0/21 2570 0.1% AS12479 -- UNI2-AS Uni2 Autonomous System 16 - 72.42.193.0/24 2466 0.1% AS40060 -- AAAWI - AAA Wireless, Inc. 17 - 85.60.208.0/22 2399 0.1% AS12479 -- UNI2-AS Uni2 Autonomous System 18 - 203.240.65.0/24 1684 0.1% AS17865 -- SCOURT-AS-KR Supreme Court of Korea 19 - 203.240.68.0/24 1684 0.1% AS17865 -- SCOURT-AS-KR Supreme Court of Korea 20 - 203.240.73.0/24 1684 0.1% AS17865 -- SCOURT-AS-KR Supreme Court of Korea 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