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