I recently bought an unlocked 3GS iphone with a Vodafone phone plan in Italy. in August I am going to be returing home to the USA and i am wondering if I will be able to use my phone with a new AT&T plan? will I be able to take out the sim card that I have now and start over with a new phone plan? any suggestions or knowledge regarding this would be great!!! thank you!!!!!If you have a unlock iphone, you can only use it with either A T&T or T-Mobile. both of these cell phone carriers use GSM and requires a sim card for your cell phone.
Unlocked iphone compatible with any phone service?
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