A wireless communication device (WCD) may receive a communication from an initiating party. The communication may be associated with a communication application, and may include a communication-application identifier that identifies the initiating party. The WCD may check whether a contacts list for the WCD contains user name data associated in the contacts list with the communication-application identifier. Upon determining that the contacts list does not contain such user name data, the WCD may querying a network server (NS) to request user name data associated with the communication-application identifier, receive from the NS a reply containing particular name data associated with the communication-application identifier along with additional communication-application user identifiers, each of which is also associated with the particular name data. The WCD may update the contacts list such that the particular name data is associated with the communication-application identifier along with the received additional communication-application identifiers.