2011/02/02

IPv4 address exhaustion and final "/8" block allocation policy

ICANN and IANA will announce on 3 Feb 2011 (tomorrow) the completion exhaustion of IPv4 addresses worldwide. Watch out for wide international media coverage.

This does not mean ISPs can not obtain further IPv4 allocations from the five RIRs (APNIC, ARIN, LACNIC, AFRNIC and RIPE), but RIRs will never get anything from their mother.

According to APNIC, yesterday, it  received the final allocations of "39/8" and "106/8" from IANA. APNIC will continue to make allocations according to its own established policies. APNIC expects normal allocations to continue for a further three to six months.

After this time, APNIC will act on the final "/8" policy and each member will only have a single chance of obtaining a "/22" block or 1024 IPv4 address for IPv6 transitional arrangement. After all, ISPs or mobile operators must build some IPv6-IPv4 systems for bridging to IPv4 networks even if they roll out their IPv6 access networks. APNIC expects that the final "/8" for IPv6 transition can last for five years.

The final "/8" block of APNIC can serve 16384 companies in the Asia Pacific Region for preparing their transitional arrangements.

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