So, I recently sent an unlock request to AT&T (see thread: https://forums.macrumors.com/showthread.php?p=18339425#post18339425) to unlock an iPhone 5 I sold over eBay a few weeks ago, and I just found out that AT&T denied my request for one of three following reasons:
- If you are under contract you must complete the contract period before your device can be unlocked.
- If you are a prepay customer, you must have 6 months of prepaid service.
- If you paid full price for your AT&T device and are a postpaid customer you must have at least 90 days of service with AT&T.