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Henk Uijterwaal (RIPE NCC)
henk at ripe.net
Tue Sep 28 16:04:20 CEST 2004
Hi, > Below please find some statistic of per AS open relays numbers based on > njabl.org data (njabl.org retests open relays after 90 days) and > riswhois.ripe.net queries. It shows that 25% of open relays detected by > njabl.org is hosted by 16 ASes. > [ 10%->3; 20%->10; 30%->25; 40%->48; 50%->89; 60%->168] > > No ORs %ORs TOTAL AS > 1 886 5.33% 5.33% AS4134 CHINANET-BACKBONE (CN) > 2 403 2.43% 7.76% AS7132 CHINANET-BACKBONE (CN) > 3 396 2.38% 10.14% AS7491 Pacific Internet Philippines ASN (PH) > 4 344 2.07% 12.21% AS3462 HiNet (TW) > 5 314 1.89% 14.10% AS4766 KT-NET (KR) > 6 296 1.78% 15.88% AS4713 > 7 268 1.61% 17.49% AS4837 > 8 174 1.05% 18.54% AS4812 > 9 159 0.96% 19.50% AS3352 > 10 147 0.88% 20.38% AS7678 > 11 144 0.87% 21.25% AS209 > 12 143 0.86% 22.11% AS4732 > 13 141 0.85% 22.96% AS701 > 14 136 0.82% 23.78% AS6503 > 15 128 0.77% 24.55% AS2828 > 16 119 0.72% 25.26% AS3215 > 17 114 0.69% 25.95% AS3269 > 18 114 0.69% 26.64% AS3786 > 19 113 0.68% 27.32% AS2856 > 20 108 0.65% 27.97% AS8151 > > IMHO it shows that AS based policies have a chance to deliver useful results. Yup, it probably does. But please take this to the anti-spam-wg, where it belongs. Henk ------------------------------------------------------------------------------ Henk Uijterwaal Email: henk.uijterwaal(at)ripe.net RIPE Network Coordination Centre http://www.amsterdamned.org/~henk P.O.Box 10096 Singel 258 Phone: +31.20.5354414 1001 EB Amsterdam 1016 AB Amsterdam Fax: +31.20.5354445 The Netherlands The Netherlands Mobile: +31.6.55861746 ------------------------------------------------------------------------------ In a room with a window in the corner, I found truth. (Ian Curtis)
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