The Kingsbury Commitment is a 1913 out-of-court settlement of the United States government's antitrust challenge against the American Telephone and Telegraph Company (AT&T) for the company's then-growing vertical monopoly in the telecommunication industry. In return for the government's agreement not to pursue legal action against the company as a monopolist, AT&T agreed to divest the controlling interest it had acquired in the Western Union Telegraph Company, and to allow non-competing independent telephone companies to interconnect with the AT&T long-distance network.

AT&T Inc. is an American multinational telecommunications holding company headquartered at Whitacre Tower in Downtown Dallas, Texas. It is the world's fourth-largest telecommunications company by revenue and the largest wireless carrier in the United States. As of 2023, AT&T was ranked 13th on the Fortune 500 rankings of the largest United States corporations, with revenues of $120.7 billion.