Where can I find the APN settings for an unlocked AT&T iPhone 4 running iOS 7?

Today I unlocked my AT&T iPhone 4 running iOS 7 (the official method via AT&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.

Assuming you still have the AT&T -SIM card (To verify, go into Settings > General > About > Carrier), AT&T will not allow you to change the APN settings, even on unlocked phone.

You need a SIM card from a carrier that allows APN settings change, that will depend on where are you going. Usually if you go to the new carrier they have a section explaining how to.

Some more helpful information.

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.

You will not find the APN settings in iOS 7. I spent forever on this and finally just downloaded the profile for my carrier using:

http://www.unlockit.co.nz/unlockit/

Follow the directions on the right side of the screen. Do it with a wireless connection from your iPhone and know your specific carrier. Worked like a charm for me as I can now access the internet using my data plan. No reason to pay for unlocking or jailbreaking.

Usually iOS devices don’t need a manual setup to connect to AT&T cellular internet services if you purchased a compatible data plan and sim. However, in case your iOS device is unable to connect to AT&T cellular internet service, follow the steps given in AT&T APN setting guide to resolve the issue.