Factory Unlocked Status
If you want to check whether your device is factory unlocked or not , here is trick that you can use to check it online .
1. Visit : www.imei.info
2. Now , Not down your Phone's IMEI Number by simply dialing : *#06# ,
3. Enter your IMEI Number on the website where it ask to yours and then wait a sec ,
4. You will now be bring to a new page where it have some information about your phone and then you will have an option called " SIMLOCK & WARRANTY " just click over it
5. Now wait for few minutes for the process to complete , now you will have the complete details of your phone status .
Thats it .. Now check your iphone is unlocked on locked for a particualr carrier , and know much more about your device .
how to check unlock status on iphone
how to check a phone is locked or not online