People can find AT&T payment centers by ZIP code on the company's website, as of 2015. Customers who are unsure of the exact ZIP code can search by city and state to find a payment center.
People using AT&T payment centers must pay with cash, checks or money orders, or through advance payments or deposits, as the centers do not accept credit card payments. Those paying by check must bring valid photo identifications, and all people using AT&T payment centers must know their account numbers to make payments. AT&T provides a link on its website to find other payment methods for people who cannot find an authorized payment center in their area.