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Re: Paetec PI space?
From: William Herrin <bill () herrin us>
Date: Wed, 26 Jun 2013 18:00:57 -0400

On Wed, Jun 26, 2013 at 5:23 PM, Jon Lewis <jlewis () lewis org> wrote:
On Wed, 26 Jun 2013, William Herrin wrote:

On Wed, Jun 26, 2013 at 3:17 PM, Jon Lewis <jlewis () lewis org> wrote:

It's got to be PA space.  Paetec isn't in a position to assign PI space.

No distinction is drawn between PA and PI for ARIN-region address
space assigned prior to ARIN's inception in 1997. That's "legacy"
address space.

Since the end of filtering on prefixes shorter than /24, PA and PI
have lost most of ther distinction anyway. There's RIR-assigned and

The distinction to me is that PA space is provider owned space assigned to a

Hi Jon,

If the space was assigned after ARIN's inception then it's no more
owned by the service provider than by the end user. If the ARIN
contract you signed was clear on nothing else, it was clear about

You are correct, however, that the Local Internet Registry (LIR, aka
ISP) may set additional rules for the address' use beyond those rules
ARIN sets. In the ARIN region (this is less clear cut in other
regions) one of the common rules the LIR sets is that you can't keep
the addresses when you cease to buy a compatible product from the LIR.
However, and this is important, the LIR has complete discretion in
adding that rule. ARIN in no way requires it.

So it isn't PA or PI... it's just a heirarchy of registries, each of
which adds rules.

Bill Herrin

William D. Herrin ................ herrin () dirtside com  bill () herrin us
3005 Crane Dr. ...................... Web: <http://bill.herrin.us/>
Falls Church, VA 22042-3004

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