AT&T APN Settings

I have an unlocked iPhone 5 that's using a backup from my old iPhone 4S that was on Straight Talk. Everything works but MMS. I setup MMS by editing the backup.

I'm back on AT&T and need the proper APN settings including MMS for my iPhone. I tried Googling but as you'd expect there's plenty of references to setting installing profiles and some wishy-washy answers where I could type in a username/password or not.

I've swapped the SIM card to access the Cellular Data menu with my AT&T SIM installed and just need someone to kindly provide me with their known, working settings.

Thanks :)

OR (if necessary) you could pretend I'm some "bloke" on "holiday" with an AT&T "tariff" trying setup his "mobile."

'wanker'

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