The primary 1-800 number for AT&T Wireless customer service is 800-331-0500. This number is available Monday to Friday from 8 a.m. to 10 p.m. ET, and Saturday to Sunday from 7 a.m. to 7 p.m. ET. It handles a wide range of customer service issues including billing, service changes, technical support, and more
. Additionally, from inside the U.S., you can also call 800-335-4685 or dial 611 from your AT&T wireless phone for support
. However, 800-331-0500 is the most commonly used and recommended customer service number for AT&T Wireless.
