Access terminals are adapted to facilitate automated configuration of communications interfaces based on a current carrier identity. According to one example, an access terminal may determine a carrier identity from a subscription module. A modem configuration associated with the carrier identity may be selected from modem configuration data stored on a storage medium accessible by the access terminal. The selected carrier-specific software configuration may then be activated to configure a communications interface of the access terminal to facilitate operations associated with the carrier identity, such as facilitating wireless communications with a carrier associated with the carrier identity. Other aspects, embodiments, and features are also included.