Abstract: A method of anticipating an access code such as a telephone number. A database of reference access codes is provided. As each character of a new access code is dialed, the database is searched for reference access codes that have the same leading digits. If one match is found, that matching reference access code is displayed to allow the user to call it without dialing new characters. If more than one match is found, the matching reference access codes are ranked according to a selection criterion. Preferably, the database includes an indication of the history of usage of the reference access codes and the selection criterion is based on the usage histories of the reference access codes, for example, according to their times of most recent usage, and also according to other criteria such as current day of the week. The highest ranking reference code is displayed. If the user completes dialing with no match found, then the newly dialed access code is included in the database.