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  1. en.wikipedia.org › wiki › MCI_IncMCI Inc. - Wikipedia

    MCI, Inc. (formerly WorldCom and MCI WorldCom) was a telecommunications company.

  2. www.verizon.com › files › worldcomWorldCom - Verizon

    WorldCom was a leading communications company that was acquired by Verizon Communications in January 2006. Known as MCI at the time of the merger, WorldCom’s network assets are now part of Verizon Business. WorldCom was originally founded in 1983 as Long Distance Discount Service, Inc.

  3. Industry: Telecommunications. CEO: Bernard J. Ebbers. Website: https://www.mci.com. Ticker: WCOM. Company type: Revenues ($M): $17,678. Profits ($M): $-2,669. Market value ($M): Number of ...

  4. MCI, Inc. (subsequently Worldcom and MCI WorldCom) was a telecommunications company. WorldCom was originally headquartered in Clinton, Mississippi before relocating to Ashburn, Virginia when it changed its name to MCI. [1][2]

  5. Aug 4, 2024 · MCI, Inc. (formerly WorldCom and MCI WorldCom) was a telecommunications company. For a time, it was the second-largest long-distance telephone company in the United States, after AT&T. WorldCom grew largely by acquiring other telecommunications companies, including MCI Communications in 1998, and fi.

  6. Apr 16, 2003 · MCI, originally called Microwave Communications Inc., helped revolutionize the United States telecommunications industry by challenging the high-priced stranglehold on long-distance service...

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  8. Dec 27, 2020 · MCI Communications Corp. (originally Microwave Communications, Inc.) was a telecommunications company headquartered in Washington, D.C. that was at one point the second-largest long-distance provider in the United States.

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