About
IPv6 is the newest version of the Internet that launched on June 6, 2012. It will allow for more IP addresses than the previous IPv4. Our current Internet addressing system, IPv4, only has room for about 4 billion addresses -- not nearly enough for the world’s people, let alone the devices that are online today and those that will be in the future: computers, phones, TVs, watches, fridges, cars, and so on. More than 4 billion devices already share addresses. As IPv4 runs out of free addresses, everyone will need to share.[1]
An IPv6 address is represented by 8 groups of 16-bit hexadecimal values separated by colons (:). For example:
2001:0db8:85a3:0000:0000:8a2e:0370:7334.[2]
Origin
Statistics
http://www.google.com/ipv6/statistics.html
