[arin-ppml] ARIN-2012-3: ASN Transfers - Last Call

[John Curran]

On May 9, 2012, at 6:01 PM, Owen DeLong wrote:
> 
> Actually, Geoff's numbers only suggest that there are ≤8259 recoverable
> numbers. They provide no lower bound whatsoever on the number.

That is correct.  

> The mere fact that a number does not appear in a routing table visible
> to Geoff Huston's research in no way indicates that it is not fully utilized
> in a context which is not visible to Geoff and which still requires global
> uniqueness.

Agreed.  While I have heard of a few AS numbers over the years being used in
completely private routing situations, there is no clear method for determining 
that which is "not visible" by definition.

FYI,
/John

John Curran
President and CEO
ARIN