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No you cannot. T-Mobile and AT&T are two completely different services. AT&T's SIM cards are shaped differently and a T-Mobile SIM will not fit into the AT&T Galaxy phones. I do suggest switching completely over to AT&T! I have found that their service is generally better and they seem to have better coverage in many areas!
Sorry, there was a problem. Please try again later.Yes, just need a tmobile simm card and an unlocked phone
Sorry, there was a problem. Please try again later.AT&T and T-Mobile are two separate companies, but both offer devices on the same type of cellular network (GSM). Some devices are compatible on both networks through the use of separate sim cards, but you would need to contact T-mobile directly for full details on specific models.
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