AT&T/GoPhone has one of the largest USA wireless network. You may click here to check the coverage are of AT&T GoPhone service .
You will need an unlocked (or AT&T-locked) phone that has GSM 850/1900 bands. All North America GSM phones feature GSM850/1900 bands. If your phone is from Europe or Asia, please confirm it is a tri-band or quad-band phone. Please check your phone models (click here) if you are not sure about your phone specs. Please note that Verizon/Sprint/Virgin Mobile phones use CDMA system so they do NOT support GSM (SIM cards), unless it is specified as an international phone.
AT&T GoPhone has 3 monthly rate plans: (A) 250 min+ unlimited text (B) unlimited talk& text, and (C) unlimited talk& text + 1GB data Detail as in below:
Note 1 : After the 30 day period ends, AT&T will automatically deduct the monthly fee from the account and start a new 30-day session. If you don't have enough credit in the account, the account will be suspended until you refill enough credit. Note 2 : If you select 30 day plan, we will charge you for the first month's credit. If you want to cover more than one month's credit, please visit our GoPhone refill purchase page for additional credit.
We will activated your SIM card 3 day before the "departure date" you entered when purchasing. (Thus, please enter the date wisely.) If you're already in the USA, or want to activate it now, you can enter today's date and we will activate it right away. (Important: upon activation $15 refill credit expires in 30 days from that day on. $25 and $50 expires in 90 days, and $100 expires in 365 days.)