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RE: Anyone seen 172.15/16 lately?

  • From: william(at)elan.net
  • Date: Wed Sep 28 15:23:24 2005


I checked my historic files from 1991, 1997 and 1999 and don't see this block being allocated to anyone (don't have much data from 1991 - 1997 unfortunetly...). My guess is that this /16 was never allocated.

On Wed, 28 Sep 2005, Edward Lewis wrote:

At 14:35 -0400 9/28/05, Hannigan, Martin wrote:

Isn't 172.15/16 legacy Sun example space pre 1918? It's
all over CCO and Sunsolve in examples and defaults.
I poked some more and the LACNIC server says it is unallocated. That was the most straightforward answer of the bunch.

It's an interesting exercise to see what the 5 RIRs return and what IANA doesn't. ;)

ARIN - "no records found"
APNIC - ' 172.0.0.0 is not allocated to APNIC' but lists CC of AU
AFRINIC - '0/0', CC of EU
LACNIC - "unallocated"
RIPE - pretty much the same answer as AfriNIC
IANA - doesn't query for numbers

Didn't see a WhoIs box on the NRO site.

--
William Leibzon
Elan Networks
[email protected]