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WorldCom - Verizon

    https://www.verizon.com/about/sites/default/files/worldcom/index.html
    WorldCom would emerge from bankruptcy in 2004, rebranding itself as MCI, before being bought by Verizon. Prior to the acquisition, MCI was headquartered in Ashburn, Virginia. The MCI acquisition provided Verizon with an international long-distance network and several large corporate customers.

MCI WorldCom International HQ Project - Independent ...

    https://roofing.ms/mci-worldcom-international-headquarters/
    Sep 28, 2016 · MCI WorldCom International Headquarters – Clinton, MS 87,300 SQFT of Manville Bitumen Roofing, 69,000 SQFT of standing seam roofing, standing seam panels up to 59 FT long, unusual design with steep slopes and tremendous heightsEstimated Reading Time: 40 secs

MCI

    http://www.mci.com/
    Global business and residential communications company operating in more than 65 countries.

Jacksonville, FL MCI

    https://www.mci.world/locations/jacksonville-fl/
    MCI Jacksonville, FL New Location: Downtown Jacksonville - COMING SOON! Apply Now 6703 Southpoint Dr. N. #300, Jacksonville, FL 32216 Back (877) 472-4439

MCI Communications Customer Service Phone Number (800) 444 ...

    https://mci-communications.pissedconsumer.com/customer-service.html
    Sep 22, 2020 · Summary In 2001-2003 WorldCom went bankruptcy, changed its name to MCI, and moved the corporate headquarters from Clinton, Mississippi to Dulles, Virginia. MCI, Inc. was an American telecommunications company. The merger of WorldCom and MCI Communications resulted in the creation of the MCI WorldCom.

MCI Customer Service Numbers

    http://consumer.mci.com/customer_service/Service_Numbers.jsp
    If you are a current MCI Consumer customer, you can log in to our secure customer website to access your account information or e-mail Customer Service. Log in to Online Account Manager. Consumer Numbers Long Distance Customer Service Local Customer Service 1-800-444-3333 1-888-MCI-LOCAL

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