How much would i have to pay for unlocking my iphone?

Can att or tmobile unlock an iphone? How much?

You can do it yourself for free if you have Wi-Fi access just google it.

If your on contract, you can call your at&t representative and they may unlock it for free.

The cost of unlocking an iPhone differs according to the network which it is locked to. An iPhone can be unlocked safer and easier using remote unlocking service. The remote unlocking service for an iPhone can be acquired from answers.http://www.superunlockcodes.com/apple/rs16wp8/ at low cost. This method of unlock doesn't require a Jailbreak too. You can unlock an AT&T network or T-Mobile network i Phone too using this method.

Go here and see
http://jailbreak4iphone.com
This will help you to unlock any kind of iPhone.