Almost 97 percent of ISPs have either already implemented or plan to implement IPv6, according to a study by Nominum. From that group 23 percent have already done so, while 35 percent say they plan to do so this year and 39 percent say they plan to implement IPv6 in 2013 or later. Every Japanese ISP has deployed IPv6. Only 25 percent of North American respondents have deployed IPv6, but 100 percent plan to by year-end. Just 48 percent of European respondents plan to deploy IPv6 by year-end, and only 20 percent of Latin American ISPs plan to deploy IPv6 by year-end. European ISPs appear to risk not making the transition in time, since under current policies the Regional Internet Registry for Europe (RIPE NCC) is projected to run out of IPv4 addresses later this year. Despite the extra expense associated with upgrading customer premise equipment, 80 percent of ISPs plan to use a native dual-stack transition mechanism for their roll-outs as opposed to NAT and other such technologies.
