Sometime in the next 6 years, the Internet will run out of space. Expediting the migration to IPv6 is the solution to the impending crisis, says ARIN.
The coming shortage of Internet Protocol addresses on Monday prompted the American Registry for Internet Numbers (ARIN) to call for a faster migration to the new Internet Protocol, IPv6.
The current version of the Internet Protocol, IPv4, allows for over 4 billion (2^32) Internet addresses. Only 19% of the IPv4 address space remains. Somewhere around 2012-2013, the last Internet address bloc will be assigned and the Internet will be full, in a manner of speaking.