Get as much IP space as you ever dreamed of, was: Re: Looking to buy IPv4 addresses from class C swamp

Jack Bates jbates at
Wed Apr 30 02:07:58 UTC 2003

Roland Verlander on NANOG wrote:
> Don't beleive the listing of hijacked netblocks @ Spamhaus, its maintained
> by someone who doesn't seem to know the difference between spammer-hijacked
> netblocks & netblocks assigned by ISPs to thier users.

Actually, Spamhaus is very good at detecting zombies. The link provided 
is not strictly hijacked networks, though. In all cases, Spamhaus tends 
to side on a "questionable" zombie, as sometimes it's difficult to tell 
if a network was truly hijacked. As known spamhausen do hijack more 
networks and demonstrate a track record, it does lead to more easily 
detecting when a network or AS has been hijacked. In all cases, the list 
is about spam, not netblock hijacks.


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