A system stores a set of telephone numbers dialed by a user. The system selects a subset of telephone numbers from the stored set of telephone numbers as the user's favorite telephone numbers based on one or more first scores, where the one or more scores include a frequency score associated with a frequency that the telephone numbers have been dialed by the user and/or a recency score associated with how recently that the telephone numbers have been dialed by the user. The system stores the list of the user's favorite telephone numbers in memory.