Citibank
https://online.citibank.com /US https://online.citibank.com/US 2gvP5KS5Nmze4AiOrfD2a7S /JSO/signoff/SummaryRecord.do?logOff=true N x https://online.citibank.com/US/JRS/globalsearch/SearchAutoCompleteJsonP.do /cards/svc/autocomplete.autocomplete?view=ALL

Phone Numbers

Your AT&T Universal Card
For Questions 1-800-423-4343
General Assistance
For Technical Assistance 1-877-660-1151
For Support with a Lost/Stolen Card or Identity Theft 1-800-423-4343 TTY: 1-800-367-8997
Outside the U.S., Call Collect 904-448-8661
Servicio al cliente en español 1-800-947-9100
Internet Security Specialists 1-888-285-9696
Mailing Addresses
Send Payments to: AT&T Universal Card, P.O. Box 183037, Columbus, OH 43218-3051
Overnight Delivery/Express Payments Mailing Address AT&T Universal Card, Attn: Payment Department, 1500 Boltonfield Street, Columbus, OH 43228
General Correspondence AT&T Universal Card, P.O. Box 6500, Sioux Falls, SD 57117-6500