Patent ID: 8724793

Claim:
A system for providing telephone number mapping in a local number portability environment, the system comprising: an originating office of a service provider, the originating office comprising an originating end office, and a local number portability capable central office; a terminating office in communication with the originating office; and a combined local number portability and telephone number mapping database in communication with the originating office and the terminating office, wherein the originating office receives, at the originating end office, a call placed by an originating device to a terminating device, the originating end office forwards the call to the local number portability capable central office, the local number portability capable central office queries the combined local number portability and telephone number mapping database based upon dialed digits of the call with a single query, the combined local number portability and telephone number mapping database returns a single response, the single response containing local number portability information when the terminating device is a plain old telephone system device and local number portability and telephone number mapping information when the terminating device is an internet protocol terminating device, and the local number portability capable central office analyzes the single response to determine how to route the call, the call being directly connected to the terminating device through the terminating office if the terminating device is the plain old telephone system device, and wherein if the terminating device is the internet protocol terminating device, the local number portability capable central office receives the single response including local number portability and telephone number mapping information, and handles the call according to the response from the combined local number portability and telephone number mapping database.