My iPhone is out of service?

Hi, my iPhone (AT&T) is out of service, cause I didn't pay it, but I would like to know if there's any way that I can check for eventual tex messages (maybe online)? This cause I was expecting a few very important to me, and don't know if I got it… Thanks!

What should i do?
go at custmer care

You need to pay whatever you owe before they will re-activate your phone and let you see the texts.
I don't see why they would be nice to you if you haven't paid your bill
Hope this helps