Home / Blogs

The Central IPv4 Pool is Gone

Derek Morr

Yesterday, the Asia-Pacific registry got the last two blocks in the central IPv4 pool.

The IANA has been sitting on five /8s (one per regional registry), and these will be handed out (along with the fragments from the legacy class B space), one to each registry. The IANA IPv4 registry doesn't yet reflect this.

This is the first milestone in IPv4 depletion. The regional registries will start to run out later this year. Most likely, Asia-Pacific will run out first, followed by Europe, then North America. The South American and African registries will last longer, as there's much less demand for IPv4 addresses in those regions.

The Asia-Pacific registry estimates it will run out of IPv4 by the end of this summer.

It was fun while it lasted.

By Derek Morr, Senior Systems Programmer, Pennsylvania State University
Follow CircleID on

If you are pressed for time ...

... this is for you. More and more professionals are choosing to publish critical posts on CircleID from all corners of the Internet industry. If you find it hard to keep up daily, consider subscribing to our weekly digest. We will provide you a convenient summary report once a week sent directly to your inbox. It's a quick and easy read.

I make a point of reading CircleID. There is no getting around the utility of knowing what thoughtful people are thinking and saying about our industry.

Vinton Cerf, Co-designer of the TCP/IP Protocols & the Architecture of the Internet

Share your comments

To post comments, please login or create an account.



New TLDs

Sponsored byAfilias


Sponsored byVerisign


Sponsored byThreat Intelligence Platform

DNS Security

Sponsored byAfilias


Sponsored byWhoisXML API

Brand Protection

Sponsored byAppDetex

Domain Names

Sponsored byVerisign

IP Addressing

Sponsored byAvenue4 LLC