Any IoT device that is mobile will require cellular or satellite connectivity. Cellular service availability is generally widely available and excellent, especially in cities and along highways. In the case of IoT devices that will travel to remote locations or where cellular service is not available, IoT device developers can opt for satellite coverage. However, radio modules of this type are typically more expensive than more common transports. Additional concerns that IoT device developers will need to address is the longevity of the cellular technology being deployed. The 2G spectrum will be phased out by all carriers – some carriers, like AT&T, have publicly announced that they will end support for 2G at the end of 2016. Other carriers have announced that they will support 2G as late as 2020. 3G has a lifespan as well. Automakers are working towards the 4G and newer technologies for their connected solutions for their new cars.