Mpower Adds Swidler Berlin Vice Chairman to Board of Directors ROCHESTER, N.Y., April 26 /PRNewswire-FirstCall/ -- Mpower Holding Corporation (BULLETIN BOARD: MPOW) , the parent company of Mpower Communications Corp., a provider of broadband Internet access and telephone services to business customers, announced today that Andrew D. Lipman has joined its Board of Directors. Lipman is Vice Chairman of Swidler Berlin Shereff Friedman (SBSF) and the Chairman of the firm's telecommunications, Internet and new technologies practice. Lipman has spent more than 25 years developing SBSF's telecommunications and information technology group into one of the largest practices of its kind in the nation. He practices in virtually every aspect of telecommunications law and related fields, including regulatory, transactional, litigation, legislative and land use. Lipman is also co-founder and the first Chairman of the Association of Local Telecommunication Services (ALTS), the national trade association for competitive telecommunications carriers. "Mpower is one of the leading, most innovative competitive carriers in telecom today," stated Lipman. "With an outstanding management team at the helm, I am very excited about Mpower's future in this industry." "We are extremely pleased with the addition of Andy Lipman to our Board of Directors," added Mpower Communications Chairman and Chief Executive Officer Rolla P. Huff. "Andy's deep and extensive telecommunications and regulatory background will be an asset as Mpower continues to emerge as a strong regional CLEC. We are fortunate to be able to tap into his wealth of experience in operating and providing strategic direction for local exchange companies as we continue to execute on our profitable growth strategy." Forward-Looking Statements Under the safe harbor provisions of the Private Securities Litigation Reform Act of 1995, Mpower Holding Corporation cautions investors that certain statements contained in this press release that state management's intentions, hopes, beliefs, expectations or predictions of the future are forward-looking statements. Management wishes to caution the reader these forward-looking statements are not historical facts and are only estimates or predictions. Actual results may differ materially from those projected as a result of risks and uncertainties including, but not limited to, future sales growth, market acceptance of our product offerings, our ability to secure adequate financing or equity capital to fund our operations and network expansion, our ability to manage growth and maintain a high level of customer service, the performance of our network and equipment, our ability to enter into strategic alliances or transactions, the cooperation of incumbent local exchange carriers in provisioning lines and interconnecting our equipment, regulatory approval processes, changes in technology, price competition and other market conditions and risks detailed from time to time in our Securities and Exchange Commission filings. The company undertakes no obligation to update publicly any forward-looking statements, whether as a result of future events, new information, or otherwise. About Mpower Holding Corporation Mpower Holding Corporation (OTC:MPOW) (BULLETIN BOARD: MPOW) is the parent company of Mpower Communications, a facilities-based broadband communications provider offering a full range of data, telephony, Internet access and Web hosting services for small and medium-size business customers. Further information about the company can be found at http://www.mpowercom.com/. DATASOURCE: Mpower Holding Corporation CONTACT: Investor Relations: Gregg Clevenger, Chief Financial Officer, +1-585-218-6547, , Media: Michele Sadwick, Vice President, +1-585-218-6542, , both of Mpower Holding Corporation Web site: http://www.mpowercom.com/

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