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It's more dependant on your device than the sim. I do know anyone who is currently an at&t customer will most likely have to upgrade their devices next year as at&t is phasing out 3g and lower. As for new accounts if you're device is capable of using less than 4g it won't work, prepaid or not. I tried going to a store(at&t store) and they did everything they could to get my unlocked phone to work, kept coming up short.
Sorry, there was a problem. Please try again later.How much time do I get on a card and do I have to change the card every time I need to get a new one for more time for the next month or can I just buy one card and set up a plan which will with that card inside the phone
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