On Monday 14 July 2008 2:55 pm, Marc Perkel wrote: > Has anyone determined if ASN information is useful in determining if a > message is/is not spam? Don't know about useful this is, but I can get a report any time of guilty ASN's from the SpamTools scripts I run. Below is the top 10 spamming ASN's on my box from last year:
Report date: Thu Apr 24 21:08:43 CDT 2008 Total spams: 22541 Total ASNs: 2500 Rank Cum % Pct Spams ASN Description ---- ------ ---- ----- ----- ------------- 1 8.6% 8.6% 1946 unk Unknown 2 13.3% 4.7% 1063 - 3 17.9% 4.5% 1016 3561 SAVVIS - Savvis 4 20.1% 2.3% 510 4766 KIXS-AS-KR Korea Telecom 5 22.2% 2.1% 464 9318 HANARO-AS Hanaro Telecom Inc. 6 24.1% 2.0% 442 4134 CHINANET-BACKBONE No.31,Jin-rong Street 7 25.5% 1.4% 313 8075 MICROSOFT-CORP---MSN-AS-BLOCK - Microsoft Corp 8 26.9% 1.4% 309 17858 KRNIC-ASBLOCK-AP KRNIC 9 28.0% 1.1% 255 286 KPN KPN Internet Backbone AS 10 29.1% 1.1% 246 12956 TELEFONICA Telefonica Backbone Autonomous System I have a total of 3074 ASN entries for last year. So far this year the top 10 are: Report date: Mon Jul 14 17:58:09 CDT 2008 Total spams: 3320 Total ASNs: 723 Rank Cum % Pct Spams ASN Description ---- ------ ---- ----- ----- ------------- 1 8.3% 8.3% 276 - 2 13.4% 5.1% 169 9318 HANARO-AS Hanaro Telecom Inc. 3 18.2% 4.8% 158 17586 NARASPEEDNET-AS-KR Nara Cable TV Inc 4 21.1% 3.0% 98 3215 AS3215 AS3215 France Telecom - Orange 5 23.5% 2.4% 79 15169 GOOGLE - Google Inc. 5 25.9% 2.4% 79 17858 KRNIC-ASBLOCK-AP KRNIC 7 28.1% 2.2% 73 9121 TTNET TTnet Autonomous System 8 29.5% 1.4% 46 14037 AS-RVB-1 - RackVibe LLC 9 30.8% 1.4% 45 5617 TPNET Polish Telecom's commercial IP network 10 31.9% 1.1% 36 4134 CHINANET-BACKBONE No.31,Jin-rong Street 10 33.0% 1.1% 36 19262 VZGNI-TRANSIT - Verizon Internet Services Inc. -- Chris KeyID 0xE372A7DA98E6705C
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