Geoff Huston has recently published on his website his annual look at IP address usage in the various regions of the world.
A few notes from the report:
- With the exhaustion of the IPv4 pool in the APNIC region, the total number of IPv4 addresses allocated declined from the previous year. In 2011, 201 million addresses were allocated compared with 248 million in 2010.
- A substantial “run on the bank” occurred as the APNIC pool depleted in 2011. The number of addresses jumped from an average of 2.3 million addresses per week in 2010 to 6.9 million in the first 4 months of 2011.
- Geoff’s RIR exhaustion model still predicts a depletion of the RIPE IPv4 pool in mid-2012. ARIN’s IPv4 pool is currently expected to last until around the end of 2013.