Today, the international organizations that are responsible for IP addresses are expected to announce full allocation of the IPv4 address space. This means that the entire range of 4 billion IPv4 addresses have been spoken for.
A researcher from USC explains the exhaustion of IPv4 addresses and the solution of IPv6 in this great video.
June 8, 2011 has been designated World IPv6 Day when major organizations enable IPv6 connections to their sites in order to test connectivity of this next generation Internet protocol.
SSC Pacific is IPv6 ready now.