If you are a holder of an AT&T credit card, you will make payments on your card via the card issuer Citibank. See below for information on making a payment online or by mail, and how to reach customer service if problems:
- If you’d like to make a payment on your AT&T credit card online, .
If you want to pay by mail, the AT&T credit card payment mailing address is:
AT&T Credit Card
P.O. Box 183037
Columbus, OH 43218-3051
If you are having trouble making a payment or need other help, the AT&T credit card customer service phone number is .