[arin-ppml] Draft Policy 2009-8: Equitable IPv4 Run-Out - Last Call

Member Services info at arin.net
Tue Nov 24 11:18:21 EST 2009

The ARIN Advisory Council (AC) met on 19 November and decided to
send a revised version of the following draft policy to last call:

   Draft Policy 2009-8: Equitable IPv4 Run-Out

Feedback is encouraged during this last call period. All comments should
be provided to the Public Policy Mailing List. This last call will
expire on 10 December 2009. After last call the AC will conduct their
last call review.

The draft policy text is below and available at:

The ARIN Policy Development Process is available at:


Member Services
American Registry for Internet Numbers (ARIN)

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Draft Policy 2009-8
Equitable IPv4 Run-Out

Version/Date: 24 November 2009

Policy statement:

Rename NRPM; Subscriber Members Less Than One Year

Replace NRPM with; Subscriber Members After One Year

After an organization has been a subscriber member of ARIN for one year,
they may choose to request up to a 12 month supply of IP addresses.

When ARIN receives its last /8, by IANA implementing section,
the length of supply that an organization may request will be reduced.
An organization may choose to request up to a 3 month supply of IP

This reduction does not apply to resources received via section 8.3. An
organization receiving a transfer under section 8.3 may continue to
request up to a 12 month supply of IP addresses.


This policy is intended to ensure an equitable distribution of IPv4
resources as run-out of the ARIN free pool occurs. This is achieved by
changing section of the NRPM to reduce the length of supply of
IPv4 resources that may be requested when the IANA free pool runs-out.
Equity is accomplished by reducing the window that an advantage or
disadvantage can exist between competitors, that will be created when
one competitor receives a final allocation just before run-out and
another competitor does not.

Further this policy ensures equity between incumbent resource holders
and new entrants by providing the same length of supply for each as the
ARIN free pool runs out. This eliminates a potential bias toward
incumbent resource holders that is created as a result of ARIN free pool
run-out interacting with resource allocation slow start for new entrants
in current policy.

This policy is similar to ideas in RIPE policy proposal 2009-03
(http://www.ripe.net/ripe/policies/proposals/2009-03.html), and has been
adapted by discussion and for use within the ARIN region.

This policy is intended to be independent of other policies or proposals
to reserve address space for IPv6 transition or other purposes. It is
not intended to limit Transfers to Specified Recipients per section 8.3
of the NRPM.

This draft contains the elements that there seems to have been the
largest consensus for on the floor of ARIN XXIV Public Policy Meeting in
Dearborn, Michigan. Further, there was a strong preference that no
changes be triggered until IANA free pool run-out.

Timetable for implementation:  Immediate

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