North American Network Operators Group

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Re: Does anyone have an up to date list of ASN allocations?

  • From: Geoff Huston
  • Date: Thu May 29 18:53:39 2003

At 05:58 PM 28/05/2003 -0700, Herb Leong wrote:

E.B. Dreger [[email protected]] wrote:

#HL> Date: Wed, 28 May 2003 17:28:45 -0700
#HL> From: Herb Leong
#HL>    Does anyone have an up to date list of ASN assignments?
#HL> All of the usual places that I normaly check are now out
#HL> of date.  Searches come up with ziltch...

That was quick!  Thanks much!

The detail there only covers ARIN in terms of contact pointers

Another collection is at

This encompasses the IANA AS number registry, the union of all 4 RIR allocations
and a listing of AS numbers and RIR-registered names / descriptions

A (updated hourly) list of RIR-allocated AS's is at and the inverse of this list is at