Can I take my sim card from a regular flip phone from ATT and put it into a...

kathleen m

New member
...ATT smartphone?
The sim card has 3 g wrote on it. Not sure if that means anything. My sister in law has the account and gave me her ex's sim card since she doesnt want to charged for canceling early. I am going to take it over but I want a smart phone. I dont want to pay for a phone if the card wont work. I am just trying to see what I can do.
How do you know what kind of sim card it is?
 
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