This data shows the fraction of users with IPv6, per ISP: http://www.worldipv6launch.org/measurements/ http://www.worldipv6launch.org/measurements/ And here is

This data shows the fraction of users with IPv6, per ISP: http://www.worldipv6launch.org/measurements/ http://www.worldipv6launch.org/measurements/ And here is some similar data, but per country: http://www.google.com/intl/en/ipv6/statistics.html#tab=per-country-ipv6-adoption http://www.google.com/intl/en/ipv6/statistics.html#tab=per-c... The US just recently crossed 10%.