We have Verizon and have had pretty good luck with it. Only one time we could not get service for a week while we camped at Priest Gulch campground in Deloris, CO. Nothing worked for anyone there. Could not get satellite (Dish) service either. It was GREAT, just the campfire, friends, wife, dog and myself, had to learn how to converse all over again! Other than that one time, we lost service in the back country in Arizona one time but have camped in Utah, Colorado, California, New Mexico, Montana and Wyoming and have had pretty good service. We like Verizon!