AT&T Customer Service | 800-288-2020 - CableTV.com
www.cabletv.com › att › customer-serviceJan 12, 2022 · For AT&T TV support, you can call AT&T’s customer service number at +1-800-288-2020 between the hours of 8 a.m. and 12 a.m. (midnight) ET, seven days a week. It’s the same number for AT&T internet support, but those hours are 8 a.m.–7 p.m. Monday–Friday and 8 a.m.–5 p.m. ET, Saturday–Sunday. Technical support for both AT&T TV and internet service can be reached 24/7 at +1-800-288-2020.