MCI Customer Service Number

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Find Official Address of MCI:

22001 Loudoun County Parkway, Ashburn, Virginia, United States

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Call MCI on the Helpline Number:

+1 678 259 1449 (Call by Touch)

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What is MCI?

MCI, Inc. is a telecommunication company, based in United States. The company offers IT solutions, data and IP services, wireless and VoIP services. MCI was established on 3 October, 1963. The first president of the company was John D. Goeken. In the early years, the company was named Microwave Communications, Inc. MCI, Inc. is so popular that it became the America's second largest distance services provider in a short span of time. The company in 1998 was acquired by WorldCom and changed its name as MCI WorldCom. In 2000, it adopted the name WorldCom. Due to financial scandals, WorldCom again became MCI Inc. In the year 2006, the Verizon purchased the company. The head office of the company is situated in Ashburn, Virginia.

Features and Services of MCI

MCI is the second largest telecommunication enterprise in United States and is committed to provide the fast and furious telecom services to its customers in terms of mobile network, high speed internet services with 4G LTE network. MCI is the subsidiary of Verizon Communications and its headquarters is located at Ashburn, Virginia. MCI is providing the IT Solutions, data and IP services, VoIP and much more. The MCI enterprise was initially established as a result of the merger of WorldCom and MCI Communications enterprises, and kept the name MCI WorldCom, and later on succeeded by WorldCom. In the MCI enterprise more than thirty thousand qualified and experienced employees are working for the convenience of customers in order to provide them high speed internet and mobile services.

Products of MCI

  • Conferencing
  • Contact Centers
  • Data and IP Services
  • Internet access
  • IT Solutions and Hosting
  • Managed Networks
  • Premises
  • VoIP
  • Equipment (CPE)
  • Voice

Contact Details of MCI

  • Long Distance Customer Service: 1-800-444-3333
  • Local Customer Service: (1-888-624-5622)
  • For English Users: 1-800-955-0925
  • For Spanish Users: 1-800-950-4652
  • Prepaid Calling Services: 1-800-242-7070 / 1-800-540-3598
  • Toll Free Number: 1-800-444-3333
  • World wide access Number: 1-800-955-0925 / 1-800-950-4652
  • Other Contact Numbers: 1-888-624-5622 / 1-800-540-3598

Contact MCI

MCI resides at 22001 Loudoun County Parkway, Ashburn, Virginia, United States provides here all the necessory details like helpDesk helpline numbers i.e. +1 678 259 1449 by which customers can reach to MCI easily. Here on this page you can get customer service toll free helpline number of MCI.
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MCI Phone Number, Contact Address, Customer Service