[ppml] Policy 2002-5

Michael.Dillon at radianz.com Michael.Dillon at radianz.com
Thu Dec 5 06:03:34 EST 2002

> >  - ARIN should make publicly available list of blocks that had been 
> >previously allocated and then returned back to ARIN. ARIN should wait
> >12 months or more before re-allocating previously returned blocks.
> Can't you almost do that now? By going and check the block owner list at 
the FTP site? and then going to historical files?
> Not sure just asking... 

Yes you may be able to almost do this using existing data and going to a 
lot of trouble. It's a half-baked solution and I want to replace it with a 
well thought-out solution that makes it easy for people to access and use 
the data.

> Additionally 
> probably it should be allowed for somebody to comment to ARIN (perhaps 
> specially designated email) when the block being returned had been in 
> blacklists and possibly company that had it was involved in questionable
> activities. 

If ARIN publishes a complete list of unallocated blocks there will no 
longer be any problem with blacklists or tainted space. That's because 
when the system is up and running, I will put forth the suggestion that 
ARIN should post a weekly message to SPAM-L and a few other places 
summarizing the week's activity, i.e. returned allocations, new 
allocations, allocations out of previously used space. After a while the 
blacklisting community will get the idea that they too can use the ARIN 

For instance a mail server checks the IP address against the ARIN database 
before accepting incoming email. Of course this uses the base LDAP 
directory rather than the BGP format. And ARIN encourages heavy users to 
mirror the data and use their own LDAP server for this.

-- Michael Dillon

More information about the ARIN-PPML mailing list