With AT&T whats the number you can dial to change your phone number over the phone?

I've done it before but I forgot howWith AT%26amp;T whats the number you can dial to change your phone number over the phone?
There is no number.You will have to call customer care to change your number.Call from another phone besides your cell phone. They'll walk you through the steps to change your number. There is a fee involved to change your number.It is $36.