nanog mailing list archives

Re: Paetec PI space?


From: Jon Lewis <jlewis () lewis org>
Date: Wed, 26 Jun 2013 17:23:52 -0400 (EDT)

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 customer.

PI space is "your space", whether assigned by ARIN or "legacy" space handed out by Internic or whoever was handing out space at the given pre-RIR time. It's yours to use with whatever provider you want.

PA space generally can't be taken with you if you leave the provider...though it's not unusual to be given some amount of time to renumber.

IME, it would be unusual, even for pre-RIR space, for a provider to assign space to a customer and not expect to reclaim that space when the customer terminates service. At the same time, it wouldn't be unusual, particularly for very large or very people/clue deficient providers to just never bother reclaiming space. In such a case, I'd say it still is their space...they just haven't done the housekeeping to realize that the space should be back in their pool of assignable blocks.

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