They claim they do.. I recently signed on with their 39$ a month 400 anytime min, unlimited nights and weekends, with a large (including every major city in the US) local area.. I'm fairly impressed with the service so far as far as quality of signal and such..I heard a lot of people complain about not getting a signal here in town (Huntsville AL), but I've yet to have a dropped signal here in town, and also on my trips in some quite wooded/hilly areas where my previous providers wouldn't reach. I'm guessing maybe its the phones people are using..I prefer nokia. Normally get about 2000-3000 hours out of each Nokia I've purchased, with them surviving countless falls and a few dog attacks.