ARIN question

Owen DeLong owen at
Mon Jul 22 21:34:03 UTC 2013

On Jul 19, 2013, at 8:49 PM, Jimmy Hess <mysidia at> wrote:

> On 7/19/13, Warren Bailey <wbailey at> wrote:
>> All,
>> Does anyone have a baseline on the "maximum" allocation a small to mid-sized
>> ISP can receive from ARIN? I realize resources are scarce in IPv4 land, and
>> I am a bit nervous to initiate the process myself without an understanding
>> of what can/cannot be allocated. I'm not looking for anything insane, maybe
> ^
> There's not a predefined "maximum" allocation,  there are maximums
> that apply in certain circumstances;  the maximum is a 3 month supply
> of IP addresses that you have documented justification for,  subject
> to the slow-start rule   (I'm assuming you can't show justified need
> for a /8  or other allocation size which the free pool exhaustion
> would make impossible);   if you don't already have a /22,  you can't
> apply for a /16, for example,   under the normal allocation policy.
> There is a minimum allocation size, and you need to meet the
> requirements shown in the policy.

To clarify, the time horizons in policy depend on the nature of the request.

ISPs are currently limited to 3 months for IPv4.
End users can get 12 months IPv4.

ISPs or end users can get up to 24 months IPv4 through the transfer process.

IPv6 does not have a clearly defined time horizon and long-term (~5 years) planning is recommended when preparing an IPv6 request.


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