MPE Bank of America Corp. Market Index Target Term Securities (Mitts) Linked TO The S&P 500 Index

Mpower Holding Corporation Announces First Quarter 2005 Earnings Conference Call ROCHESTER, N.Y., April 5 /PRNewswire-FirstCall/ -- Mpower Holding Corporation (AMEX:MPE), the parent company of Mpower Communications Corp., a leading provider of data and voice services to retail and wholesale business customers, will hold a public conference call to discuss its first quarter 2005 results on Thursday, May 5, 2005 at 10:00 a.m. Eastern. To access the call, dial 1-800-322-0079. A replay of the call will be available from Thursday, May 5, 2005 at 1:00 p.m. Eastern through Thursday, May 12, 2005 at 5:00 p.m. Eastern by dialing 1-877-519-4471, PIN #5919609. About Mpower Holding Corporation Mpower Holding Corporation (AMEX:MPE) is the parent company of Mpower Communications, a leading facilities-based broadband communications provider offering a full range of private line, data, telephony, Internet access and Web hosting services for business customers and carriers. Further information about the company can be found at http://www.mpowercom.com/. DATASOURCE: Mpower Holding Corporation CONTACT: Investor - Gregg Clevenger, Chief Financial Officer, +1-585-218-6547, ; or Media - Michele Sadwick, Vice President, +1-585-218-6542, , both of Mpower Holding Corporation Web site: http://www.mpowercom.com/

Copyright