How to Unlock an iPhone 5 / 4S / 4 with AT&T

As expected, you can now easily unlock an iPhone that is out of contract with AT&T or purchased without contract. The process of unlocking is straight forward and simple assuming you meet the basic requirements which I have mentioned bellow.

Requirements:

• iPhone not in contract with AT&T, either having completed a contract or purchased without contract
• AT&T account in good standing
• iPhone IMEI number

If you meet those requirements which I mentioned above, proceed: Unlock an iPhone Out of Contract with AT&T

• First locate the iPhone IMEI(International Mobile Equipment Identity) number and make a note of it:
• Goto Tap Settings then tap General     
• Now Tap “About” and scroll down to find “IMEI”
• Call AT&T either by dialing 611 from your iPhone, or call 1-800-331-0500 and then dial 0010 to immediately speak to a AT&T representative and skip the hold time (International users dial this number: 1-800-335-4685)
• Now request your iPhone to be unlocked, provide the IMEI number of the device to  representative , and then wait for the instructions to be emailed to you.

AT&T will initiate a request to unlock your iPhone and after that you have to restore your iPhone through iTunes software to complete the device unlock. After device unlocked, a micro-SIM from any networks like T-Mobile will now work in the iPhone.

The time it takes to receive the unlock instructions on your email seem to vary widely, with requests being made earlier in the day (like morning)  being fulfilled sometimes within an hour, while later requests given up to two weeks wait time sometimes.