No, i also chatted with them to see if it could be used as one and this is what they said... You: hey i just have a quick Question Brandi Hatch: Sure. You: can you use an at&t contract sim card and turn it in to a prepaid sim card by calling you guys??? Brandi Hatch: No, I apologize. You can only use the device not the Sim card. You: oh ok thx Brandi Hatch: Is there anything else regarding online account access that I can assist you with? You: nope
@joe303 -- check youtube or google for instruction. I think some people cut their regular size sim card to fit iPhone 4 mini-sim card size. For other iPhones, they still use regular size sim card
i do know that when you use this you need to call your AT&T provider and give them the numbers off the back of the card so that they can check to see if it will work in your phone, I had to go through the same thing. They just have to verity it for your phone and then I think they will make it work. because it only stores info you dont want to lose on your phone. Like address book info and music, pictures. I hope I helped.