The described principles provide a method and system for circumventing the use of live MDNs and nongeographic prefixes in new vehicle-hosted telematics devices, while allowing the purchaser/user convenient use of the vehicle-hosted telematics device. The telematics unit is programmed or configured from the manufacturer with the same parameters as a cancelled or deactivated unit, with a cleared number for re-acquisition. A geographically specific MIN/MDN is later programmed into the device based on one or more preset locational and other VDU triggers.