AT&T is the wires and airwaves behind everyday American life — the 5G wireless network in tens of millions of pockets and the fiber broadband running into homes and businesses. After spinning off WarnerMedia (now Warner Bros. Discovery) and selling DirecTV, it has shed Hollywood to become a pure connectivity carrier, pouring tens of billions into fiber and 5G — including buying Lumen's consumer fiber network in 2026.
From radio gear to your phone
AT&T buys 5G radios from Ericsson, fiber cable from Corning and iPhones from Apple, wires them into the spectrum and towers it owns, then sells the result as wireless and broadband to consumers, businesses and first responders.