Geoff Huston has published an update on IPv6 deployment that contains some interesting details.
- With an estimated 10 billion devices on the Internet today, they are sharing about 1-2 billion of the 4 billion possible IPv4 addresses. Using those numbers the Internet today is about 10 times larger than the amount of address space being used to actually communicate between clients.
- Mobile networks such as T-mobile using 464-XLAT are driving IPv6 traffic. (copy)
- Belgium leads in IPv6 deployment by percentage followed by the United States.