A system and method is provided to operate a directory assistance call center based upon data stored in a directory assistance database and a line information database (LIDB). A caller can access a directory assistance call center to request phone listing information about a particular party. The directory assistance call center can send a query to a directory assistance database for the requested information. Moreover, if the requested information is not found, then the directory assistance call center can send a query to a LIDB or CNAM database provider. The LIDB or CNAM database provider can forward the query to a local LIDB or CNAM database and to other remote LIDB or CNAM database providers to find the requested information.