This might be helpful just to know. Since I'm using Straight Talk to get on the Verizon network. I don't have the same coverage. I only have coverage on Verizon owned towers. You can see on Verizon prepaid coverage map.
When I used to go out west like Wyoming the cell phone towers are actually a local company that has good fast coverage. I believe Verizon has contract to use their system. So if a actually Version customer you have good service in Wyoming vs the third party companies like Straight Talk you have no service.