Posts Tagged ‘zombies’

On September 6th, 2009, Spamhaus blocked a /16 which is 65,536 IPs (1 Class B) on its SBL. This listing is filed under SBL68517. The IP range that is being blocked is 132.240.0.0/16. One can view the ASN information of 132.240.0.0 at robtex. According to robtex, the upstream for this range is AS3257 which is […]


Good news for service provider Tata Communications (AS4755) and Spamhaus and some bad news for Tiscali (now Tinet – AS3257). For approximately a month, the large Indian-based provider, Tata Communications, has been still working on its SBL (Spamhaus Block List) by resolving its listings. This means the administrators at Tata Communications have been ending services […]


ASN stands for Autonomous System Number. AS or ASN followed by a number is used to identify an autonomous system on the internet by people who manage networks on the Internet. One well-known example of an ASN is AT&T whose is ASN7018. Most people who may be network engineers are concerned with ASNs. Also, netizens […]