New Class C's just lit on on AT&T, spamming

Jon Lewis jlewis at
Tue Nov 3 18:03:02 UTC 2009

On Tue, 3 Nov 2009, Jay Hennigan wrote:

>> I don't see how this relates to IPv4-runout.  The allocation (to AT&T) 
>> isn't all that new...and when they cancel this spammer, the space will 
>> undoubtedly be assigned to another customer.
> And that other customer will find that it's poisoned space and will need to 
> look for another subnet.

I don't buy that once IP space has been used by a spammer it's ruined 
forever.  Only if abuse complaints are ignored for a considerable time are 
the IPs likely to end up widely privately blacklisted.  Even then, I don't 
believe "space is widely blacklisted, please give us more" is a valid 
justification for going to ARIN for more IPs.

We've terminated spammer customers...and reused their assignments.

  Jon Lewis                   |  I route
  Senior Network Engineer     |  therefore you are
  Atlantic Net                |
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