AT&T Inc. Overview
Pro stress-test →AT&T is the world's third-largest telecommunications company by revenue, the third largest wireless carrier in the United States behind T-Mobile and Verizon, and the nation's biggest fiber internet provider. The company has over 240 million subscribers worldwide, with operations split into Communications (wireless, broadband, business solutions) and Latin America segments.
Strategic Profile
Pro stress-test →The company is driving growth in converged fiber and 5G customers. AT&T has passed 32 million consumer and business locations with fiber and is reorganizing to focus on Advanced Connectivity services, which contributed approximately 90% of consolidated revenues in 2025.
Competitive Landscape
Pro stress-test →Mobile, internet, and TV services comprise AT&T's core business, with Verizon and T-Mobile as key rivals. AT&T ranks as the third-largest wireless carrier behind T-Mobile and Verizon, while dominating the fiber internet market.
Industry Context
AT&T Inc. operates in Telecommunications Service Providers.
Key facts
Founded: 1983 · Headquarters: Dallas, Texas · Employees: 133,030 · Revenue: $124.5B · Market cap: $186.8B