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Draft Policies and Proposals

Draft Policy ARIN-2017-9: Clarification of initial block size for IPv4 ISP transfers

Under Discussion

Discussion Tracking
Mailing List:
Formal introduction on PPML on 21 November 2017

Origin - ARIN-prop-244

Draft Policy - 21 November 2017

Public Policy Mailing List
ARIN Public Policy Meeting:
ARIN Advisory Council:

AC Shepherds:
David Farmer, John Springer

  • 16 November 2017
ARIN Board of Trustees:
Revisions Implementation

Version Date: 21 November 2017

Problem Statement: 

It was noted at the ARIN 40 Policy Experience Report, that there is an inconsistency in the initial block size for ISPs. Section 4.2.2 notes that the initial ISP block size should be /21 whereas the initial block size in 8.5.4 is noted as "minimum transfer size" which is effectively a /24. The intent of the new 8.5.4 was to match the previous policy. This policy is intended to clarify this issue. It was noted that ARIN staff current operational practice is to allow ISPs an initial /21 for Section 8 transfers. 

Policy statement: 

Add the following to 8.5.4

ISP organizations without direct assignments or allocations from ARIN qualify for an initial allocation of up to a /21.


Timetable for implementation: Immediate

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