Abstract: A method and/or apparatus of a voice-response directory assistance system having a targeted advertising engine is disclosed. In one embodiment, a method of a directory assistance system includes providing a greeting to a user of a mobile communication device, automatically determining a location based information of the user, determining a telephone number of a listing requested by the user, providing a targeted advertisement to the user based on the location information, and communicating the telephone number to the user. The method may include requesting a selection of a business listing and a residential listing through the greeting. The method may include processing a caller identification data to determine the location based information of the user, applying the caller identification data to a library of potential advertisements and selecting the potential advertisement as the targeted advertisement through applying the caller identification data to the library of potential advertisements.