MCI WorldCom Names Telefonica CEO And Chairman Juan Villalonga Navarro To Its Board Of Directors

Jackson, Mississippi, November 20, 1998 --

MCI WorldCom Board of Directors today elected Telefonica Chairman
and CEO Juan Villalonga Navarro to join its 17 member board. In
keeping with the company's policy for all Board members, Mr.
Villalonga's term will be up for renewal at the company's
annual meeting in May.
Mr. Villalonga, 45, was designated Board Member and Chairman of
the Telefsnica Group on June 7, 1996. He previously headed the
activities of Bankers Trust in Spain and Portugal and supervised the
bank's European investments in unlisted companies.

Prior to joining Bankers Trust, Juan Villalonga was Chief
Executive Officer of CS First Boston in Spain. He was previously a
partner at McKinsey & Co., where he was based in the U.S.,
Portugal and Spain, as well as managing the Rome office, during his
nine-year tenure with this consulting firm.

Villalonga is the representative of the Spanish chapter of the
Trilateral Commission, a member of the European Policy Group on the
Information Society and serves on the Carlyle Group4s European
Advisory Board. He is also a member of the Egon Zehnder International
Global Corporate Governance Board and the European Union/Hong Kong
Cooperation Committee.

MCI WorldCom is a global communications company with revenue of
more than $30 billion and established operations in over 65 countries
encompassing the Americas, Europe and the Asia-Pacific regions. MCI
WorldCom is a premier provider of facilities-based and fully
integrated local, long distance, international and Internet services.
MCI WorldCom's global networks, including its state-of-the-art
pan-European network and transoceanic cable systems, provide
end-to-end high-capacity connectivity to more than 38,000 buildings
worldwide. For more information on MCI WorldCom, visit the World Wide
Web at www.mciworldcom.co or
www.wcom.com

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Telefsnica, Spain4s flagship telephone company, is the largest
supplier of telecommunications services in the Spanish-speaking
world. Through its affiliate companies in Spain, Latin America and
the United States, the Telefsnica Group services a market of more
than 300 million customers. With $15.577 billion in 1997 revenues,
Telefsnica is one of the world4s top ten telecommunications
companies. As of September, 1998, the Telefsnica Group managed or
owned some 44.9 million fixed and cellular telephone lines in Spain
and abroad. Of its 35.5 million fixed telephone lines, 17.3 million
are in Spain and 18.2 million overseas.