Baby Bell(redirected from Regional Bell Operating Company)
Also found in: Dictionary, Acronyms, Encyclopedia, Wikipedia.
Any of seven telecommunications companies that were formed from AT&T after its antitrust break-up in 1984. In that year, AT&T was determined to be so large that it violated antitrust law in the United States and it was forced to spin off seven subsidiaries, which became known as the baby bells. Few of the baby bells still exist as independent companies, as most have gone through a series of mergers and acquisitions in the years since.
One of several integrated-communications providers that were formerly part of AT&T but became independent in 1984 following AT&T's court-ordered divestiture. The seven original Baby Bells were once operating subsidiaries of AT&T that provided local and intrastate long-distance service.