AT&T customers can pay their wireless bills online at ATT.com, as of 2015. Subscribers can also pay AT&T bills using the mobile application myAT&T. The application also works on tablet devices.
The payment screen comes up after the user clicks the My Bill tab on the main page of the ATT.com. The customer must log in using her username and password to make a payment. After logging into the account, a drop-down box appears showing the current amount of the bill and available methods of payment.
The mobile application requires the same login information to enter the account. The customer may make a payment via the mobile application by pressing the Make Payment tab. The website has live chat support where a chat representative provides guidance in making an online payment.