AT&T recently upgraded their towers in the areas of Garden City, Liberal, Sublette, Satanta, and Ulysses that I know of for sure. I usually always can get at least 4 bars on H+ which is enhanced 3G as I understand it. I've had AT&T for over 2 years and I am pretty pleased with the company.

I have recently switched from Alltel to T-Mobile. I get 5 bars here in Satanta. It uses the Westlink Communications towers. Westlink you can't travel very far because you lose your signal. T-Moible uses Cingular, AT&T, Verzion, towers so a lot more coverage. Before switching I upgraded my phone with Alltel with the newest best phone they had and tired it for 30 days. I didn't get any better signal with it than I did with my old one. I checked around before I went with T-Mobile. Cingular is good but you have to make 50% of your phone calls using a Cingular tower. I have not had any problems with my phone and can even use it in my house and have 5 full bars of service. I have shut off my long distance on my house phone and saved. The only down fault is that I have a Wichita phone number. But with my families wireless plans it is a free call any ways. I will not go back with Alltel until they upgrade their system and phone coverage.