Chapter | 8 Cell Phones 205 Project 8.3 Get an Area Coverage Map Call your cellular carrier and ask for a coverage map. Some carriers actually give you this, but many times you have to ask for it. It may also be on your carrier website. The map will show you the actual range and coverage of the system. If you leave the area, you may have no coverage or you may switch over to another system in a roam mode. Project 8.4 ID the Carriers Identify the cell carriers (ATT Wireless, Cingular, Verizon, Sprint, Alltel, MetroPCS, etc.) in your area. If they advertise locally in the newspapers or in cell phone stores, they cover your area.