This invention relates to methods for the automatic generation of personal directories that list calls made to or from a specific phone number. The methods comprise the steps of receiving a telephone number related to a call placed or received on a user's phone, storing the phone number along with other information such as the date and time of the call, organizing the information in a useful manner, as well as incorporating other information related to the number such as a name and address, and finally providing the organized list of numbers in the form of a personal directory.