The Internet Society also makes ongoing measurements of IPv6 deployment on its World IPv6 Launch site. It shows that 12.5 percent of the Alexa Top 1,000 websites are currently reachable over IPv6. "That number was 10 percent a year ago," according to Phil Roberts of the Internet Society. In addition, the Internet Society checks the number of network operators who are turning on IPv6. "The first time [we reported on the statistics] we had about 70 networks," Roberts says. "Now we're up to 213."