On May 20th, LacNIC announced that it has reached the equivalent of a /9 remaining in its IPv4 free pool which has triggered the IANA to invoke its reclaimed IPv4 address space policy.  The IANA received a number of blocks from various RIRs under the reclaimed policy over the years.  Under the global policy for reclaimed blocks, each RIR is allocated 1/5th of the total pool.  Now that the first initial allocation has been made the IANA reclaimed free pool will be reevaluated every six months and appropriate distributions will then be made to each RIR.

LacNIC received the block (45.160.0.0/11) and will continue with its current allocation policies with some additional scrutiny until the free pool reaches a equivalent of a /10, then only blocks between /22 and /24 will be allocated.

APNIC has subsequently announced that they have received a /11 equivalent from the IANA as part of the reclaimed distribution.  Under APNIC policies, each APNIC member is eligible to receive up to a /22 of additional IPv4 address space from this specific block.

RIPE has sent an email to its member list which notes it has received 45.128.0.0/11 from IANA and has added this block to its free pool.  Under the current RIPE policy each LIR can receive a single /22 block.

ARIN has not yet announced that they have received an additional block, but the IANA registry notes they have received 45.32.0.0/11.  As ARIN does not have a specific policy for this block so it should be added to the available free pool.  ARIN’s current pool lists 0.86 /8s equivalent remaining on May 21st.

I have introduced a policy proposal (ARIN-2014-16) to the ARIN region which would designated IANA reclaimed blocks to be allocated under an austerity policy, but this policy is currently in only at the draft stage of discussion on the public policy mailing list.