BGP Update Report
Interval: 06-Aug-09 -to- 13-Aug-09 (7 days)
Observation Point: BGP Peering with AS131072
TOP 20 Unstable Origin AS
Rank ASN Upds % Upds/Pfx AS-Name
1 - AS4961 129280 4.6% 2191.2 -- DISC-AS-KR Daewoo Information System
2 - AS9198 84498 3.0% 244.2 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration
3 - AS9767 79188 2.8% 2140.2 -- DONGBUIT-AS-KR Dongbulife Insurance co.,LTD
4 - AS23716 60670 2.2% 2166.8 -- CHANGWON23716-AS-KR Changwon College
5 - AS18157 53746 1.9% 2149.8 -- CHUNGJU-AS-KR chungju university
6 - AS9956 50700 1.8% 2204.3 -- KONGJU-AS kongju national university
7 - AS9459 50451 1.8% 2193.5 -- ASKONKUK Konkuk University
8 - AS9686 47780 1.7% 2171.8 -- SKKUNET-AS SungKyunKwan University (SKKU)
9 - AS10159 36626 1.3% 2154.5 -- HAUNET-AS-KR HANKUK Aviation University
10 - AS11 34449 1.2% 2649.9 -- HARVARD - Harvard University
11 - AS9530 33061 1.2% 1944.8 -- SHINSEGAE-AS SHINSEGAE I&C Co., Ltd.
12 - AS9628 30914 1.1% 1627.1 -- SSEM-AS-KR Seoul Education Science Research Institute
13 - AS33783 26953 1.0% 191.2 -- EEPAD
14 - AS9868 26490 0.9% 2207.5 -- CUTH-AS Catholic University of DAEGU
15 - AS10088 23806 0.8% 2164.2 -- KWANGWOON-UNIV-AS-AP KWANGWOON University in Seoul, Korea
16 - AS18023 21948 0.8% 2194.8 -- KMU-AS-KR Korea Maritime University
17 - AS18027 21940 0.8% 2194.0 -- NSU-AS-KR namseoul university
18 - AS18026 21516 0.8% 2151.6 -- CHEJU-AS-KR Cheju University
19 - AS17865 21220 0.8% 2122.0 -- SCOURT-AS-KR Supreme Court of Korea
20 - AS10045 20074 0.7% 2230.4 -- TNUTNET-AS HANBAT NATIONAL UNIVERSITY
TOP 20 Unstable Origin AS (Updates per announced prefix)
Rank ASN Upds % Upds/Pfx AS-Name
1 - AS23525 6124 0.2% 3062.0 -- CNC-CNB - Canandaigua National Corporation
2 - AS11 34449 1.2% 2649.9 -- HARVARD - Harvard University
3 - AS11191 4726 0.2% 2363.0 -- ELITE-NET - Elite.Net
4 - AS9852 9056 0.3% 2264.0 -- SAMIL-AS SAMIL ACCOUNTING CORPORATION
5 - AS17840 2244 0.1% 2244.0 -- KOREACERT-AS-KR KECA, Inc.
6 - AS3784 8976 0.3% 2244.0 -- ERX-POSTECHNET Pohang University of Science and Technology
7 - AS10058 6720 0.2% 2240.0 -- CU-AS-KR NACUFOK
8 - AS9969 2232 0.1% 2232.0 -- WMS-NET-AS-KR KOREA RESOURCES RECOVERY AND REUTILIZATION CORPORATION
9 - AS10045 20074 0.7% 2230.4 -- TNUTNET-AS HANBAT NATIONAL UNIVERSITY
10 - AS9322 4460 0.2% 2230.0 -- EWHANET1-AS Institute of Information and Computing, EWHA WOMANS UNIV.
11 - AS17600 2226 0.1% 2226.0 -- ENVICO-AS-KR Korea Environment & Resources Corporation
12 - AS18303 2220 0.1% 2220.0 -- SMARTRO-AS-KR SMARTRO
13 - AS17603 4438 0.2% 2219.0 -- KUMOH-AS-KR Kumoh National University Technology
14 - AS18343 15506 0.6% 2215.1 -- TAEGUTECH-AS-KR Daegu Technical College
15 - AS18320 4429 0.2% 2214.5 -- GNUE-AS-KR Gwangju National University of Education
16 - AS18315 6642 0.2% 2214.0 -- SORABOLNET-AS-KR Sorabol College
17 - AS10042 4424 0.2% 2212.0 -- DPC-AS-KR DAEGU POLYTECHNIC COLLEGE
18 - AS9868 26490 0.9% 2207.5 -- CUTH-AS Catholic University of DAEGU
19 - AS17567 6622 0.2% 2207.3 -- IREX-AS-KR Airport Railroad Co ltd
20 - AS18163 8824 0.3% 2206.0 -- JINJU18163-AS-KR jinju national university
TOP 20 Unstable Prefixes
Rank Prefix Upds % Origin AS -- AS Name
1 - 88.204.221.0/24 9289 0.3% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration
2 - 95.59.1.0/24 9229 0.3% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration
3 - 95.59.8.0/23 9108 0.3% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration
4 - 95.59.4.0/22 9108 0.3% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration
5 - 95.59.3.0/24 9106 0.3% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration
6 - 95.59.2.0/23 9104 0.3% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration
7 - 92.46.244.0/23 9077 0.3% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration
8 - 89.218.218.0/23 9077 0.3% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration
9 - 89.218.220.0/23 9077 0.3% AS9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration
10 - 66.152.126.0/24 6090 0.2% AS23525 -- CNC-CNB - Canandaigua National Corporation
11 - 72.23.246.0/24 5963 0.2% AS5050 -- PSC-EXT - Pittsburgh Supercomputing Center
12 - 193.201.184.0/21 5256 0.2% AS25546 -- BROOKLANDCOMP-AS Brookland Computer Services
13 - 67.118.199.0/24 4724 0.2% AS11191 -- ELITE-NET - Elite.Net
14 - 79.141.74.0/23 4080 0.1% AS43912 -- NEWCOM-AS ZAO "NEWCOM"
15 - 130.175.0.0/16 3940 0.1% AS11 -- HARVARD - Harvard University
16 - 19.0.0.0/8 3940 0.1% AS11 -- HARVARD - Harvard University
17 - 130.170.0.0/16 3939 0.1% AS11 -- HARVARD - Harvard University
18 - 192.12.120.0/24 2709 0.1% AS5691 -- MITRE-AS-5 - The MITRE Corporation
19 - 85.60.208.0/21 2503 0.1% AS12479 -- UNI2-AS Uni2 Autonomous System
20 - 129.9.236.0/23 2463 0.1% AS11 -- HARVARD - Harvard University
Details at http://bgpupdates.potaroo.net