[arin-announce] ARIN to Issue 4-byte ASNs by Default Starting on 1 January 2009
info at arin.net
Tue Dec 30 08:15:19 EST 2008
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:
Please contact hostmaster at arin.net if you have any questions concerning
the ASN policy and four-byte ASNs.
Director, Registration Services
American Registry for Internet Numbers (ARIN)
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