IANA Issues /13 to ARIN

Posted: Tuesday, 03 March 2015

On 2 March 2015 ARIN received a /13 of IPv4 address space from IANA in accordance with the Global Policy for Post Exhaustion IPv4 Allocation Mechanisms by the IANA. This policy was immediately activated when the LACNIC IPv4 free pool dropped below one /9 of IPv4 address space. The full text of the policy is available at:

As a result of this allocation, the ARIN IPv4 free pool will be slightly increased this week. This change does not impact the IPv4 Countdown Plan, and we will continue to follow Phase 4 processing procedures. 

We encourage you to visit the IPv4 Countdown Phase Four page at:

ARIN will add this new /13 ( - to its available inventory this week and will begin issuing from this block in the near future.

For informational purposes, a list of ARIN's currently administered IP address blocks can be found at:

Please contact hostmaster@arin.net or our Help Desk +1.703.227.0660 if you have any questions.


Richard Jimmerson
Chief Information Officer
American Registry for Internet Numbers (ARIN)