How do I check how many minutes I have on my Cingular phone without using the website?

Well I want to check how many minutes I have left on my Cingular phone without making an account on the cingular.com I knew how to before but i forgot. It was like *Numbers# or something like that to dial on your phone and they send you a message saying how many minutes you have [...] http://bit.ly/rtXgRA