ARIN recognizes Interop for return of more than 99% of 45/8 address block

Wed Oct 20 17:53:45 UTC 2010

On 20/10/10 17:47, Brielle Bruns wrote:

> Not to stir an already boiling over pot and all, but is there any kind of
> report or documentation on releasing of space from countries other then the
> North American region?

Really it's mainly US govt agencies, defence contractors, etc from the dawn of
the Internet who hold legacy class A space of this type. This space was pre-RIR
which means it was not assigned on the same (broadly similar) global policies
as the majority of address space in the modern era.

On that basis, there's nothing big for other regions to 'give up'. One
exception is the UK government with two /8s.

http://www.iana.org/assignments/ipv4-address-space/ipv4-address-space.txt
http://en.wikipedia.org/wiki/List_of_assigned_/8_IPv4_address_blocks