Where can I find the APN settings for an unlocked AT&T iPhone 4 running iOS 7? Today I unlocked my AT&amp;T iPhone 4 running iOS 7 (the official method via AT&amp;T).  In order to use my phone abroad next month I'm told I'll need to be able to set APN settings but I can't find them anywhere on my device. 

I believe the unlock was successful as iTunes showed a confirmation message saying so.

I've tried looking in various places suggested by posts on various message boards but I can't find the settings anywhere.
You need to Reset your Network settings and make sure you don't have any profile saved by you, and after resetting it go to the cellular network menu and you will see the APN settings.