what is the 1-800-customer service for at&t?

The main 1‑800 customer service number most people use for AT&T residential and wireless support is:

• 1‑800‑288‑2020 – general customer service, billing, and technical support for many AT&T home services and internet.

• A very common wireless support line is 1‑800‑331‑0500 (or just dial 611 from your AT&T cell phone) for mobile account and device issues.

Because AT&T has multiple 1‑800 numbers depending on what you need (wireless, internet, TV, new service, business, etc.), if one of these does not match your situation, the safest move is to go to the official AT&T “Contact us” page and select your exact service type before calling.