According to Futurity.org, the last IPv4 addresses were allocated in February by The Internet Assigned Numbers Authority. It is not time to panic, yet. There are still
Leaving IPv4 Behind
On Wednesday, June 8, 2011, Facebook, Google, Microsoft, Yahoo, Global Crossing, Akamai, Limelight and the Internet Society, will enable IPv6 for 24 hours. For a more detailed explanation of IPv6, please view this post from February.
Remember, this is a 24-hour test period. I would suggest you spend June 8 exploring the Internet. I would not suggest engaging in online banking, credit card purchases, software updates or implementing new security software.
Onward to IPv6
IPv6 will allow 1000 trillion trillion IP addresses, so each device on a network will have a separate IP address, allowing enhanced location-based access restrictions and context-aware security.
Before the official roll out, there are many problems to be solved. Security for IPv6 is almost nonexistent. IPv4 and IPv6 must be compatible during transition. And hundreds of other issues must be resolved . . .
Probably the biggest obstacle to overcome will be with the Federal Trade Commission as they renegotiate the recently mandated privacy laws ;-)