Frankfurt - June 4, 2009 - DE-CIX Supports Deployment of F-root Servers in Frankfurt. ISC has operated the "F" root domain server, one of the 13 Internet root name servers known as A-root through M-root, since 1994.
46 of the world’s root domain servers are F-roots, operated by ISC. If you are perplexed that 46 (the number of F-root servers) is greater than 13 (the number of root name servers), it is important to know that the "anycast" scheme is used to make the 46 servers collectively behave as 1 server.