Metromedia Fiber Network Names Dr. Charlotte G. Denenberg Vice President and Chief Technology Officer.

Issue: April 7, 1999

NEW YORK--(BUSINESS WIRE)--April 7, 1999--Metromedia Fiber Network, Inc. (NASDAQ:MFNX), a provider of dedicated fiber optic networks within major metropolitan areas, today announced the appointment of Dr. Charlotte G. Denenberg as Vice President and Chief Technology Officer.

Dr. Denenberg is charged with delivering the high-speed, high-bandwidth intra-city optical networks fundamental to Metromedia Fiber Network's business strategy. In addition, she is responsible for planning the company's network evolution and directing its engineering, operations and network planning functions. She will report directly to Howard Finkelstein, President and Chief Operating Officer of Metromedia Fiber Network.

Dr. Denenberg has over 25 years of telecommunications industry experience. Prior to joining Metromedia Fiber Network, she worked for Southern New England Telephone Company (SNET) for 11 years, most recently as Vice-President - Network Technology and Chief Technology Officer. Responsible for planning SNET's network evolution, she oversaw all network-related technology assessment, and directed the planning for SNET's network and its associated support systems.

Previously, Dr. Denenberg held various leadership positions at ITT Corporation including Director of Technology Evaluation and Support. Prior to that, she spent four years with the former AT&T Bell Labs, now part of Lucent Technologies.

"Charlotte's specialized technology and business background has given her extensive experience in technology assessment and in all phases of optical network design and construction. We're pleased to welcome her to our leadership team," said Howard Finkelstein, president of Metromedia Fiber Network. "The breadth of her talents will be invaluable to us as we extend the reach of our broadband infrastructure into additional markets and evolve our unique product offering of unlimited bandwidth at a fixed cost."

Throughout her career, Dr. Denenberg has served on various corporate, industry and community boards including SNET Cellular, Junior Achievement and the Science Center of Connecticut. Currently, she serves on the Board of Directors of the University of New Haven and chairs its Distance Learning Committee. She is also a member of the Alliance for Telecommunications Industry Solutions (ATIS) and is a founding member of the Connecticut Technology Council.

Recognizing her leadership role in broadband initiatives, Telephony magazine awarded her with its Fiber-in-the-Loop Network Design and Deployment Award in 1994.

Dr. Denenberg earned her doctorate and masters degrees in Mathematics at the Illinois Institute of Technology and holds a bachelor's degree in Psychology from Northwestern University.

Dr. Denenberg is a resident of Trumbull, Connecticut.

About Metromedia Fiber Network

Metromedia Fiber Network is building metropolitan fiber optic infrastructure in the local loop in strategic Tier One markets, enabling technologically sophisticated organizations to implement the latest data, video, internet and multimedia applications. By offering virtually unlimited, unmetered bandwidth at a fixed cost, Metromedia Fiber Network is eliminating the bandwidth barrier and redefining the way broadband capacity is sold.

Utilizing Metromedia Fiber Network's infrastructure, customers are able to rapidly deploy state-of-the-art optical networks. Communications carriers and Internet Service Providers gain local loop connectivity to the most highly populated metropolitan areas. Corporate and government customers benefit from private building-to-building networks featuring the fastest transmission speeds available and the highest levels of reliability and security. In addition to its current nationwide expansion in 11 major cities, Metromedia Fiber Network is entering the international market with fiber optic network builds in Germany, and the provision of transatlantic bandwidth capacity through International Optical Network (ION), a joint venture with Racal Telecom of the United Kingdom. For more information about Metromedia Fiber Network, please visit the company's Web site at

This news release contains certain forward-looking statements that involve risks and uncertainties. Factors that could cause or contribute to such risks and uncertainties include, but are not limited to, general economic and business conditions, competition, changes in technology and methods of marketing, and various other factors beyond the Company's control. This also includes such factors as described from time to time in the SEC reports filed by Metromedia Fiber Network, including the most recently filed Form 10-Q.

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