Abstract: Disclosed is a device and method for searching for telephone numbers in a mobile terminal. The device includes a phonebook for storing telephone numbers dialed or received in a specific area, together with the number of calls to or from each of the telephone numbers; a user input unit for allowing a user to input a command for a telephone number search; a display unit for displaying one or more telephone numbers; and a control unit for storing a telephone number of an outgoing or incoming call together with a current location of the mobile terminal in the phonebook and, in response to the command for a telephone number search, delivering the telephone numbers stored in the phonebook to the display unit.