Image for MCI Communications Corporation

MCI Communications Corporation

MCI Communications Corporation was a major American telecommunications company founded in 1963 that revolutionized long-distance calling and private networks. It competed with larger phone companies by offering more innovative and affordable services, helping to open up the telecom industry to increased competition. MCI played a key role in the development of modern communication infrastructure, including advancements in data transmission and early internet services. In 1997, it was acquired by WorldCom, which later became part of Verizon. MCI's efforts significantly contributed to expanding connectivity and improving telecommunications technology across the United States.