Joe, On Jun 26, 2013, at 11:18 AM, Joe Abley <jab...@hopcount.ca> wrote: >> We have a customer who was assigned some PI IPv4 space by Paetec back in >> mid-90's > I think it's correct to say that the only entities that can assign PI IPv4 > space are RIRs and the IANA.
Nope. Historically, there was no distinction and people could (and did) sub-allocate address space with no terms of service indicating the address space should ever be returned. After the establishment of the RIRs and the creation of the PI/PA distinction (encouraged with much controversy in the CIDR/ALE working group days), there was a concerted effort by the RIRs to move towards a "lease" model. I believe that effort may have been reflected in RSAs at the RIRs, but am too lazy to look it up. Regards, -drc
