Posts Tagged ‘blocklisting’

According to  Spamhaus Top 10 Network offenders on its Spamhaus Block List Advisory, an ISP called AS3352 TELEFONICA-DATA-ESPANA has the most SBLs on Spamhaus list as of January 17th, 2010. Based on Spamhaus‘ research, this ISP is considered the current “World’s Worst Network.”  At time of this post, there are 95 SBLs belonging to Telefonica.es. […]


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 […]


Very recently, Swedish upstream provider, TeliaSonera, threatened cut off its direct connection to Junik (AS8206) JUNIK-RIGA-LV JUNIKNET if Junik.lv did not cut off its own downstream (Real Host) because of its reputation of being rogue (hosting zeus botnets). By Monday August 3rd, 2009, Real Host lost its connectivity. Jart Armin of HostExploit recently tweeted about […]