MCI Long Distance Customer Service Numbers

MCI Long Distance Technical and Non Technical Customer Service Support

What is the Customer Service Number to Call at?:
Call to MCI Long Distance for any service support at 1-800-937-6000
Dial another number tel: +1-800-444-1111

Where is MCI Long Distance Head Office Located at?
The corporate office is located at 1300 I Street, North West Suite 400 West, Washington, District of Columbia 20005, United States.
Directions For Driving: The given driving directions path of MCI Long Distance from your place to 1300 I Street, North West Suite 400 West, Washington, District of Columbia 20005, United States.

For Availing Customer Email Service Support?:
Send all your queries at privacyoffice@verizon.com.

Which is the Website?
www.mci.com is the website of the business.

The Locations Near You?
You can get all nearby locations of MCI Long Distance on the map?


For Any Enquiry/Inquiry and Customer Service Support
Service Support: You can avail service support from MCI Long Distance by following the given path.

What is MCI Long Distance in the Process of?

MCI is considered as one of the prominent residential voice, advanced messaging and commercial telecommunications services providing company in the United States. MCI Long Distance had started its business as Long Distance Discount Services, Inc. , abbreviated as LDDS in 1983, in Clinton, Mississippi to offers wide range of long distance data plans. MCI Long Distance provided the first single mode fiber optic cable network to deliver the standard carrier in America telecommunication. MCI Long Distance is a operating unit of WorldCom, Inc. which is owned by an American based broadband and telecommunications corporation known by the name Verizon Communications.