[48360] in North American Network Operators' Group
Re: IP renumbering timeframe
daemon@ATHENA.MIT.EDU (Hank Nussbacher)
Thu May 30 12:21:35 2002
Date: Thu, 30 May 2002 20:19:28 +0300 (IDT)
From: Hank Nussbacher <hank@att.net.il>
To: Richard A Steenbergen <ras@e-gerbil.net>
Cc: Marshall Eubanks <tme@multicasttech.com>, nanog <nanog@merit.edu>
In-Reply-To: <20020530152749.GQ33611@overlord.e-gerbil.net>
Errors-To: owner-nanog-outgoing@merit.edu
On Thu, 30 May 2002, Richard A Steenbergen wrote:
> Total ASes present in the Internet Routing Table: 13122
> Origin-only ASes present in the Internet Routing Table: 11366
> Origin ASes announcing only one prefix: 4997
> Transit ASes present in the Internet Routing Table: 1756
> Transit-only ASes present in the Internet Routing Table: 53
>
> So, only around 50% of the allocated ASNs are actually used, and 5000 of
> them are announcing only one prefix. So lets just take a rough guess and
That is because once an ASN is allocated it almost never is recovered by
the 3 RIRs (RIPE is probably the best organized of the 3 and it never gets
around to reclaiming "dead" IP address space as well). I have revoked
quite a few ASNs: http://www.isoc.org.il/ipolicy.html but it involves
quarterly checking at major NAPs, emails to the contacts, finding new
contacts, registered postal letters and plenty of followup. Most LIRs just
don't bother since reclaiming a "dead" ASN is a non-revenue affair.
> say the number of people who could benefit from having a single region to
> get /24s is around 5000, perhaps lower.
>
> Richard A Steenbergen <ras@e-gerbil.net> http://www.e-gerbil.net/ras
> PGP Key ID: 0x138EA177(67 29 D7 BC E8 18 3E DAB2 46 B3 D8 14 36 FE B6)
>
Hank Nussbacher
