Thanks for that Leo,
For those interested in when these returned addresses will be able to
be allocated to end users, the policy which covers this is:
Global Policy for Post Exhaustion IPv4 Allocation Mechanisms by the
IANA | (Ratified 6 May 2012)
http://www.icann.org/en/resources/policy/global-addressing/allocation-ipv4-p...
It basically says that this pool of returned addresses becomes active
when the first of the RIRs has only a /9 left in its free pool.
You can read the details of how this works at the above link (I'm
massively oversimplifying here and will happily ignore pedants), but
essentially it means that once that happens the IANA free pool will be
divided up equally among the five RIRs.
So when is this likely to happen?
Well Geoff's excellent page at http://www.potaroo.net/tools/ipv4/
Tells us the following:
Projected RIR Address Pool Exhaustion Dates:
RIR Remaining Addresses in RIR Pool (/8s)
APNIC: 0.7900
RIPE NCC: 0.8207
LACNIC: 0.6517
ARIN: 1.2527
AFRINIC: 3.1313
So when the first of those RIRs gets down to 0.5 /8 (a /9) then IANA
will allocate out what is left in the returned address pool. Don't
get excited though, we're not talking about a huge amount of
additional address space.
The way that APNIC plans to allocate this additional address space was
covered off in prop-105
(http://www.apnic.net/policy/proposals/prop-105).
Leo, It would be great if IANA could put the total amount of returned
space in these summary mails.
Something like:
"There is a total of a /XX of space currently in the pool. If the
pool were to become active today, each RIR would receive /YY of space"
Hope this helps to make things a bit clearer.
Dean
On Wed, Apr 23, 2014 at 11:20 AM, Leo Vegoda
Hi,
In April 2014, ICANN updated the IANA IPv4 Recovered Address Space registry to reflect the return of 14 /24 prefixes (5,376 IPv4 addresses) by the RIPE NCC. The updated registry can be found at: https://www.iana.org/assignments/ipv4-recovered-address-space
Kind regards,
Leo Vegoda
ICANN
IANA
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