Patent ID: 8160580

Claim:
A method comprising: receiving, at a local server, a request by a mobile station for roaming access to a local radio access network (RAN) associated with the local server, the request containing at least a portion of a non-Internet Protocol-based mobile station ID (non-IP-based MSID) associated with the mobile station, wherein at least the portion of the non-IP-based MSID in the request comprises only a prefix; accessing, by the local server, a remote centralized domain name system (DNS) server to determine a home network domain name associated with the mobile station based on at least the portion of the non-IP-based MSDI of the mobile station, wherein the DNS server contains a mapping of home network domain names and at least a portion of associated non-IP-based MSIDs comprising only prefixes of the non-IP-based MSIDs of associated mobile stations; and granting or denying access of the mobile station to the local network based at least in part upon the determination of the home network domain name associated with the mobile station.