Beginning on 1 January 2009, ARIN will be assigning four-byte Autonomous System Numbers (ASNs) by default, unless a 2-byte ASN is specifically requested. Following a globally coordinated policy, ARIN and all the Regional Internet Registries began allocating four-byte ASNs by request in January 2007; January 2009 marks the transition to allocating four-byte ASNs by default (see http://www.arin.net/policy/nrpm.html#five1).
Because this is a relatively new implementation, it is possible that some devices may not be able to recognize the new 4-byte ASNs. ARIN urges operators to verify that their routers and those of any transit providers or peers are ready and able to accept 4-byte ASNs. Additional information about four-byte ASNs or how to request them can be found at: http://www.ietf.org/rfc/rfc4893.txt http://www.arin.net/registration/guidelines/asn.html Please contact [email protected] if you have any questions concerning the ASN policy and four-byte ASNs. Regards, Leslie Nobile Director, Registration Services American Registry for Internet Numbers (ARIN) _______________________________________________ ARIN-Announce You are receiving this message because you are subscribed to the ARIN Announce Mailing List ([email protected]). Unsubscribe or manage your mailing list subscription at: http://lists.arin.net/mailman/listinfo/arin-announce Please contact [email protected] if you experience any issues.
