Internet Protocol (IP) address assignment information is collected from Address Allocation Tables (AATs) of a plurality of IP address assigning registrars. The information is processed and stored into one or more data structures. The information is accessed to determine a proximity measure for any two...http://www.google.com/patents/US7720996?utm_source=gb-gplus-sharePatent US7720996 - Internet protocol (IP) address proximity and application to peer provider location
