Posts Tagged ‘netblock’

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 […]


While going through Spamhaus SBLs, I found this updated /23 under RIPE. It would seem that most times when Spamhaus is unsure of the exact ownership of a netblock or the downstream has a small number of IPs assigned to it, the volunteers will place it under the regional registry (RIR). I researched the IP […]