A mobile vehicle communications system and a method of using that system to provide over-the-air (OTA) data from a vehicle backend system to a target vehicle. The method includes the steps of: receiving wireless carrier system (WCS)-associated data from a plurality of vehicles that are associated with the backend system; in response to the receiving step, determining a preferred geographic communication region from among a plurality of geographic communication regions, wherein the determination includes determining that the preferred geographic communication region meets or exceeds a quality of service (QoS) threshold that at least some of the remaining plurality of geographic communication regions do not meet or exceed; and in response to the determining step, transmitting the OTA data from the backend system to the target vehicle when the target vehicle is within the preferred geographic communication region.