If you have monthly phone service from AT+T this is a great backup phone.
If you ever have problems with your current phone, just take out your SIM card and put it in this phone. It will then work using your monthly service. OR if you need a disposable phone, this is OK —– BUT T-Mobile has a lower cost Prepaid phone. With T-MObile if you put $100 on the phone you get 1000 minutes that last one YEAR. Before the year is over, if you have not used all your minutes simply add Ten Dollars and all the remaining minutes will be good for another year, or until used up.