Populating a contact entry with selected entity information based on an identifier associated with a call (e.g., a telephone call, VoIP call, text message, electronic mail message, or any other communication). As the call is detected, entity information for the identifier (e.g., a telephone number, VoIP address, MAC address, etc.) is generated. The entity information is filtered based on a category of the entity information, user preferences, location of a computing device (e.g., mobile telephone) of the user, or other filtering criteria. The filtered entity information is associated with the contact entry for the identifier, thereby enhancing the contact entry while reducing typing on the computing device. In some embodiments, additional information such as advertisements for a competitor of the entity are provided to the user.