[18270] in North American Network Operators' Group
Re: Filtering Unregistered Blocks (WAS: small vent)
daemon@ATHENA.MIT.EDU (bmanning@vacation.karoshi.com)
Wed Jul 8 17:11:19 1998
From: bmanning@vacation.karoshi.com
To: patrick@priori.net (Patrick W. Gilmore)
Date: Wed, 8 Jul 1998 06:58:19 -0700 (PDT)
Cc: dlr@bungi.com, nanog@merit.edu
In-Reply-To: <3.0.5.32.19980629114652.009c8220@priori.net> from "Patrick W. Gilmore" at Jun 29, 98 11:46:52 am
> At 12:45 PM 6/28/98 PDT, Dave Rand wrote:
>
> >This has, in fact, happened before. One of the reasons that the unallocated
> >spaces are listed on the RBL.
>
> This topic comes up every now and then. I've searched the ARIN site and
> found some very outdated lists (some as old as 1996, but none newer than
> Feb, 1998). I've searched the archives, but no one seems to have an answer
> - except you. How do you tell what is and what is not allocated?
>
Well, there is the problem of where to look. There is a pretty
comprehensive list of the delegation status of blocks at the
/8 level that is pretty accurate. I suspect that the RIRs can
provide pretty good detail for the recent (1996 and later) delegations.
The historical delegations are -much- harder to track. I've been
spending some time on clearing up detail on older /8 blocks
and this data may make it into the publicly visable registries
if they want it. 128.0.0.0/8 is done and I've got most of
192.0.0.0/8 complete.
-- bill
