An apparatus and method for performing a dialing operation using a phone book of a mobile communication terminal, and an apparatus and method capable of displaying all telephone numbers of persons registered in a phone book when a dial history information is displayed. In an apparatus and method for displaying dial history information configured by at least one of a plurality of calling/called telephone classification icons, personal names corresponding to the calling/called telephone classification icons and a single calling/called telephone number icon corresponding to each personal name, the dial history information is sequentially searched. The apparatus and method further determines whether different telephone numbers corresponding to a personal name searched from the dial history information are registered in a phone book. If the different telephone numbers corresponding to the personal name are registered in the phone book, all registered telephone numbers linked to the single calling/called telephone number icon are displayed.