A Mobile Subscriber Directory Assistance (MSDA) system including originating carrier center initiating a directory assistance call, a directory assistance center providing a directory assistance service, and a search environment. The search environment includes an aggregated pointer database and at least one directory number resolution database. A caller requesting a telephone number is connected to a directory assistance service center where search criteria for the requested number are taken. The requested number is identified by searching the aggregated pointer database and the directory number resolution database. The caller is connected to the identified telephone number without releasing this identified telephone number.