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MCI
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MCI
MCI Communications was the second-largest long-distance telecommunications service provider in the US until its purchase by WorldCom.
Launch date
1983
Employees
10001+ people
United States (HQ)
http://mci.com
https://twitter.com/verizonnews
https://www.facebook.com/verizonfoundation
https://www.linkedin.com/company/verizon
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