Coverage, meaning network coverage? It will use the Verizon native network ...which means no roaming. It will be restricted to 3G data speeds, however, and will not be able to use the Verizon 4G LTE network.
If you'd like to see the network coverage for voice and data, go to the Verizon coverage map (copy-and-paste):
For voice coverage, choose the "Prepaid" button. You will have coverage only in the "purple" areas shown on the map.
For data coverage, choose the "Data Coverage" button. You will only have coverage in the areas marked "3G Data Coverage" and "1X Data Coverage" ...the areas marked "Extended..." will not be covered.