A system and method for adding contact information to a personal network address book is provided. Contact information is added to the address book by analyzing a billing database or call detail record in order to determine telephone numbers which meet predetermined criteria set by a user. Telephone numbers meeting the predetermined criteria are extracted and transferred to the user. The user is prompted for a nickname corresponding to each extracted telephone number. The nickname and the corresponding telephone number are then stored in the personal network address book. In a voice activated dialing system, the user is able to speak the nickname in order to initiate the dialing process.