Next phase of transition to four-byte AS numbers now active
Published on: 2009-07-01
APNIC has now implemented the next phase of the transition to four-byte AS numbers.
Beginning today, APNIC assigns four-byte AS numbers by default when receiving requests for AS numbers. Two-byte AS numbers will only be assigned if the applicant can demonstrate that a four-byte only AS number is unsuitable.
For more information on the implementation phases of the four-byte AS number policy, please see section 6.3 of:
Policies for Autonomous System number management in the Asia Pacific region
To learn more about how the transition to four-byte AS numbers may affect your network, see:
Introduction to four-byte AS numbers
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