Can I transfer my ATT sim card to a no contract Iphone?

I have an Iphone 4s right now, but I want to get an Iphone 5c without the hassle of the contract.

You can place your AT&T SIM card in any phone you wish, whether it's on a contract or not. However, you need to make sure that the phone it does go into is either locked to AT&T or unlocked to all networks, otherwise it won't work.

The thing about that is the SIM card registers everything and tells the carrier about your phone so I would just buy a SIM card