If you’re not the original owner of an iPhone, it would be good to find out some basic information about your iPhone such as the date of it was purchased, warranty information, activation information, carrier and the contract status.
The contract status becomes important these days because some unlocking services require that the iPhone to out-of-contract.
How to Check if your AT&T iPhone or Other Carrier iPhone is In-Contract or Out-of-Contract?
1. First go to iphoneox.com
2. In the input box, enter your 15-digit IMEI without space. Your IMEI can be found under Settings > General > About.
3. Go ahead and click ‘Check!’
4. You will see a spinning wheel while the website queries your iPhone information from Apple’s database.
5. If your IMEI is valid, you should get the result as shown below. You won’t see any carrier information, so you can either buy the carrier checking service from us or from their website (ours are cheaper).
Please do note that this checker works best for iPhone 3G, 3GS, 4 and 4S only. For some reason, you will not get the contract status for iPhone 5. However, it is safe to assume that most iPhone 5’s are still under contract as of the date of this post is published.