I would like to piggyback on this with a similar question. I live in the mountains of WV with spotty AT&T coverage. If I switch to T-mobile can I be assured of getting the same coverage as I had with AT&T? I don't really understand what restrictions might apply to access given both are GSM capable.
Ok, so since AT&T is a GSM carrier, and T-Mobile is a GSM carrier any phone from T-Mobile will work with a AT&T SIM card right? Lately, like the past 6 months, I have been buying AT&T prepaid (GoPhone) cell phones when I wanted an upgrade. Well I was wondering if I could buy a T-Mobile prepaid cell phone and slip my SIM card in it. Does anyone know if this is locked on prepaid cell phones or not? Any other information would be greatly appreciated too.