Unlocking iPhone 5 on contract?

Is it possible to get my iPhone 5 (on contract with Orange) unlocked without breaching contract T&C?

I was thinking about going to a shop in town that unlocks mobiles but what if they check up with Orange to see if I'm on contract?

Can they do that?

Would Orange find out?

And would I even have to tell them I'm on contract in the first place?

I would just finish your contract and then at&t will unlock it for you.

I can't see a reason why you couldn't get it unlocked, but you will still have to pay the contract each month, until it ends. As long as Orange are getting their money every month, they don't mind about which phone the sim is used in, or whether it is used at all. You can't unlock it, then just walk away from the contract though. I'm with 3, and I often get my phones unlocked before the end of the contract, and as long as I keep on paying the bill, 3 don't mind.