[arin-ppml] Draft Policy ARIN-2017-9: Clarification of Initial Block Size for IPv4 ISP Transfers

ARIN info at arin.net
Tue Nov 21 17:40:39 EST 2017

On 16 November 2017, the ARIN Advisory Council (AC) advanced 
"ARIN-prop-244: Clarification of Initial Block Size for IPv4 ISP 
Transfers" to Draft Policy status.

Draft Policy ARIN-2017-9 is below and can be found at:

You are encouraged to discuss all Draft Policies on PPML. The AC will 
evaluate the discussion in order to assess the conformance of this draft 
policy with ARIN's Principles of Internet number resource policy as 
stated in the Policy Development Process (PDP). Specifically, these 
principles are:

* Enabling Fair and Impartial Number Resource Administration
* Technically Sound
* Supported by the Community

The PDP can be found at:

Draft Policies and Proposals under discussion can be found at:


Sean Hopkins
Policy Analyst
American Registry for Internet Numbers (ARIN)

Draft Policy ARIN-2017-9: Clarification of Initial Block Size for IPv4 
ISP Transfers

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.


a. Timetable for implementation: Immediate

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