AT&T XENON PUK blocked?

Hey i was recently on an airplane and was bored so i decided to mess with my phone. I was looking at my security trying to be able to lock my phone and i ran into a PUK code. I didnt know what to do and the phone said i had 10 tries. I got frustrated and thought it would go away after those 10 tries (because i couldnt get out of it). apparently it will now only let me make an "emergancy call" and i cant use my phone for anything else! I dont know what to do. please help