At&T Universal Card Login, Bill Payment & Customer Support Information

Learn about how to login, bill payment options, how to set up Auto Pay, how to cancel account and other helpful tools for your At&T Universal Card account.

At&T Universal Card Login

You can login to At&T Universal Card online account by visiting this link and access all the features. Make sure you have an account already with them. Launch your Web browser and navigate to At&T Universal Card's Login page (see below).

If you do not have an account, create an account. You will need to enter your email id, phone number and some personal data to verify your information.

At&T Universal Card Bill Payment

It offers online bill payment facility to all its users and provides several different methods to pay bills. You can pay your bill online at At&T Universal Card's website, mail your payment to the processing center, or pay your bill in person at any authorized location. It also provides you with the option to set up automatic bill payments online and make alternative payment arrangements. You can also cancel account and contact customer support online.

Here’s the info you need to make your payment in any way you choose:

Online: Log in to your account and pay online at

By mail: You can mail your check to Po Box 6500 Sioux Falls, Sd 57117. Before sending the payment you should call the customer service number 800-423-4343 for reconfirmation.

By phone: Use the automated system to make a payment. The phone number is 800-423-4343.

In Person: Pay at any of the nationwide customer service centers.

At&T Universal Card Customer Support

Average Waiting time: 5 minutes.

Below you can find best ways to contact At&T Universal Card support according to 46356 PaymentInformation users.

Phone Numbers
  • 800-423-4343 (Contact)
  • 800-423-4343 (Support)
  • Po Box 6500 Sioux Falls, Sd 57117 (Headquarters)

At&T Universal Card Opening Hours

Monday 9:30 AM to 5:30 PM
Tuesday 9:30 AM to 5:30 PM
Wednesday 9:30 AM to 5:30 PM
Thursday 9:30 AM to 5:30 PM
Friday 9:30 AM to 5:30 PM
Saturday 9:30 AM to 12:30 PM
Sunday Closed

More Information

Name At&T Universal Card
Also known as Citigroup, Inc.
Services Offered Credit Card
Categories Banking & Credit Cards

Questions and Answers

How can I login into my account?

You can login into your account visit this link

Does it offer online bill payment facility?

Yes, it offers online bill payment facility. Credit Cards, Debit Cards and internet banking payment are accepted.

Where is the headquarters located at?

The headquarters of the company is located at: Po Box 6500 Sioux Falls, Sd 57117

How can I contact customer support in case of any issues?

You can contact them by calling on following numbers:

  • 800-423-4343

  • 800-423-4343

  • 877-288-4577

Does it have any social media page?

Yes, the company has profile(s) on :




Review At&T Universal Card

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