Draft Policy ARIN-2010-10 (Global Proposal): Global Policy for IPv4 Allocations by the IANA Post Exhaustion

Status: Although adopted at ARIN, this proposal (GPP-IPv4-2010) is unlikely to advance since it has been abandoned, withdrawn, or expired at four RIRs. However, GPP-IPv4-2011, ARIN's ARIN-2011-9 did become global policy in 2012.

Tracking Information

Discussion Tracking

Mailing List:

Formal introduction on PPML on 20 July 2010

Origin - Policy Proposal 115

Draft Policy - 20 July 2010 (with staff assessment)

Revised - 20 September 2010

Tabled - 13 October 2010

Last call - 29 October through 12 November 2010

AC recommended adoption - 18 November 2010

Adopted by the ARIN Board and awaiting the conclusion of the Global PDP - 12 January 2011

Public Policy Mailing List

ARIN Public Policy Meeting:


ARIN Advisory Council:

AC Shepherds:
Bill Darte and Owen DeLong


ARIN Board of Trustees:

22 Nov 2010


Previous version(s)


See status

Draft Policy ARIN-2010-10 (Global Proposal)

Global Policy for IPv4 Allocations by the IANA Post Exhaustion

Version/Date: 29 October 2010

Policy statement:

1. Reclamation Pool
Upon adoption of this IPv4 address policy by the ICANN Board of
Directors, the IANA shall establish a Reclamation Pool to be utilized
post RIR IPv4 exhaustion as defined in Section 4. The reclamation pool
will initially contain any fragments that may be left over in IANA
inventory. As soon as the first RIR exhausts its inventory of IP address
space, this Reclamation Pool will be declared active. When the
Reclamation Pool is declared active, the Global Policy for the
Allocation of the Remaining IPv4 Address Space[3] and Policy for
Allocation of IPv4 Blocks to Regional Internet Registries[4] will be
formally deprecated.

2. Returning Address Space to the IANA
The IANA will accept into the Reclamation Pool all eligible IPv4 address
space that are offered for return. Eligible address space includes addresses
that are not designated as "special use" by an IETF RFC. Address space may
only be returned by the issuing RIR. Legacy address holders may return address
space directly to the IANA if they so choose.

3. Address Allocations from the Reclamation Pool by the IANA
Allocations from the Reclamation Pool may begin once the pool is declared active.
Addresses in the Reclamation Pool must be allocated on a CIDR boundary.
Allocations from the Reclamation Pool are subject to a minimum allocation unit
equal to the minimum allocation unit of all RIRs and a maximum allocation unit
of one /8. The Reclamation Pool will be divided on CIDR boundaries and
distributed evenly to all eligible RIRs once each quarter. Any remainder not
evenly divisible by the number of eligible RIRs will remain in the Reclamation
Pool until such time sufficient address returns allow another round of allocations.

4. RIR Eligibility for Receiving Allocations from the Reclamation Pool
Upon the exhaustion of an RIR's free space pool and after receiving their
final /8 from the IANA[3], an RIR will become eligible to request address space
from the IANA Reclamation Pool when it publicly announces via its respective
global announcements email list and by posting a notice on its website that it
has exhausted its supply of IPv4 address space. An RIR is considered at
exhaustion when the inventory is less than the equivalent of a single /8 and is
unable to further assign address space to its customers in units equal to or
shorter than the longest of that RIR's policy defined minimum allocation unit.
Up to one /10 or equivalent of IPv4 address space specifically reserved for any
special purpose by an RIR will not be counted against that RIR when determining
eligibility unless that space was received from the IANA reclamation pool. Any
RIR that is formed after the ICANN Board of Directors has ratified this policy
is not eligible to utilize this policy to obtain IPv4 address space from the IANA.

5. Reporting Requirements
The IANA shall publish on at least a weekly basis a report that is
publicly available which at a minimum details all address space that has
been received and that has been allocated. The IANA shall publish a
Returned Address Space Report which indicates what resources were
returned, by whom and when. The IANA shall publish an Allocations Report
on at least a weekly basis which at a minimum indicates what IPv4
address space has been allocated, which RIR received the allocation and
when. The IANA shall publish a public notice confirming RIR eligibility
subsequent to Section 4.

6. No Transfer Rights
Address space assigned from the Reclamation Pool may be transferred if
there is either an ICANN Board ratified global policy or globally
coordinated RIR policy specifically written to deal with transfers
whether inter-RIR or from one entity to another. Transfers must meet the
requirements of such a policy. In the absence of such a policy, no
transfers of any kind related to address space allocated or assigned
from the reclamation pool is allowed.

7. Definitions
IANA - Internet Assigned Numbers Authority, or its successor
ICANN - Internet Corporation for Assigned Names and Numbers, or its
RIR - Regional Internet Registry as recognized by ICANN
MOU - Memorandum of Understanding between ICANN and the RIRs
IPv4 - Internet Protocol Version Four(4), the target protocol of this
Global Policy
Free Space Pool - IPv4 Addresses that are in inventory at any RIR,
and/or the IANA

8. Contributors
The following individuals donated their time, resources and effort to
develop this proposal on behalf of the Internet Community:
Steve Bertrand <steve@ipv6canada.com>
Chris Grundemann <cgrundemann@gmail.com>
Martin Hannigan <marty@akamai.com>
Aaron Hughes <ahughes@bind.com>
Louie Lee <louie@equinix.com>
Matt Pounsett <matt@conundrum.com>
Jason Schiller <schiller@uu.net>

9. References

1. http://www.icann.org/en/general/allocation-remaining-ipv4-space.htm
Global Policy for the Allocation of the Remaining IPv4 Address Space,
IANA, Retrieved 27 April 2010
2. http://aso.icann.org/documents/memorandum-of-understanding/index.html
ICANN Address Supporting Organization (ASO) MoU , Retrieved 27 May 2010.
3. http://www.icann.org/en/general/allocation-remaining-ipv4-space.htm
Global Policy for the Allocation of the Remaining IPv4 Address Space
4. http://aso.icann.org/wp-content/uploads/2009/09/aso-001-2.pdf Policy
for Allocation of IPv4 Blocks to Regional Internet Registries