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WorldCom is now part of Verizon.

Verizon is a global technology company delivering the promise of the digital world to millions of customers every day. The company operates America’s most reliable wireless network and the nation’s premier all-fiber network. It provides products and services to consumers, businesses and governmental agencies.

Visit Verizon's website to review corporate and financial information, get the latest news and explore Verizon’s history.


About WorldCom

WorldCom was a leading communications company that was acquired by Verizon Communications in January 2006. Known as MCI at the time of the merger, WorldCom’s network assets are now part of Verizon Business.

WorldCom was originally founded in 1983 as Long Distance Discount Service, Inc. After growing to become one of the largest long distance providers in the country, WorldCom was forced to file for Chapter 11 bankruptcy protection in 2002 in the wake of a well-publicized accounting scandal.

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. Along with the merger, a new corporate division, Verizon Business, was created to serve medium and large businesses and government customers. Verizon Business became Verizon Enterprise Solutions in 2012.

Learn more about WorldCom and Verizon:

Visit Verizon Business
Information for MCI investors
Read archived MCI and WorldCom news
Explore Verizon’s history