MCI
1 Decision Maker · 4 Verified Contacts & Email Format
- Employees
- 10001+
- Founded
- 1974
- Type
- For Profit
- Headquarters
- Washington, District of Columbia, United States
Company data last updated Jul 29, 2025.
About MCI
MCI Communications was the second-largest long-distance telecommunications service provider in the U.S. until its purchase by WorldCom.
Who to contact at MCI
Email Format
Leadership & Decision Makers
Contact details of 1 MCI decision makers
Mike Salsbury
Team & Specialists
Contact details of 6 MCI team members
Jason Schiller
Steve Degroof
C-denise Givens
Bruce Deer
Molly Sim
Chris Finn
General Emails
General company emails, e.g. customer support lines
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Records are compiled from publicly available sources and checked as described in our methodology. Company data last updated Jul 29, 2025.
Frequently Asked Questions about MCI
What does MCI do?
MCI Communications was the second-largest long-distance telecommunications service provider in the U.S. until its purchase by WorldCom.
Where is MCI headquartered?
MCI is headquartered in Washington, District of Columbia, United States.
When was MCI founded?
MCI was founded in 1974.
How many employees does MCI have?
MCI has approximately 10001+ employees.
What industry is MCI in?
MCI operates in the Technology & Software industry.
What is the email format for MCI?
The most common email format at MCI is {first_name}.{last_name}@mci.com. For example: firstname.lastname@mci.com.
How do I contact MCI?
You can contact MCI via email at info@mci-home.com or info@grupo-mci.com, headquartered in Washington, District of Columbia, United States.