The Antitrust Breakup of AT&T

The breakup of AT&T in 1984 was one of the most important events in U.S. business history — a forced antitrust split that reshaped the entire telecommunications industry. In this video, we explain how AT&T became a monopoly, why the government intervened, and what happened to the company after the breakup. You will learn: • How AT&T built a nationwide telecom monopoly through Bell System • Why U.S. regulators forced a historic antitrust split • What happened to the “Baby Bells” after the breakup • Long-term effects on technology, innovation, and competition If you study monopolies, regulation, corporate power, and market structure, this is a foundational case.