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

IDACOMM Sells Private Dark Fiber Rings to Mpower Communications in Las Vegas LAS VEGAS, June 15 /PRNewswire-FirstCall/ -- IDACOMM, the facilities-based communications subsidiary of IDACORP (NYSE:IDA), today announced the sale of three fully redundant dark fiber rings in Las Vegas to Mpower Communications. The 141 miles of existing fiber are concentrated in the densely populated business areas of the greater Las Vegas valley. Consisting of three distinct dark fiber rings the network connects the majority of the central offices in the city and provides a platform for enhanced carrier products including metro Ethernet, SONET, and additional dark fiber networks. "IDACOMM is fully engaged in developing state-of-the-art networks to meet the fast growing broadband needs of the Las Vegas valley, and competitive telecom companies including Mpower," said Chris Britton, president and chief executive officer of IDACOMM. "Since our acquisition of Sierra Pacific Communications in July 2004 we have continued to expand our extensive dark fiber reserves to support our emerging carrier business." The sale of dark fiber rings in Las Vegas supports IDACOMM's strategy of expanding fiber networks to serve carrier customers and provide a foundation for a diverse line of business products including: lit, dim and dark fiber services; converged voice and data; high-speed Internet access; and hosted voice over IP designed specifically for small- and medium-sized businesses. "This Las Vegas fiber backbone complements our California fiber network and will give us substantial fiber assets in our largest markets," stated Mpower Communications Chairman and Chief Executive Officer Rolla P. Huff. About IDACOMM IDACOMM is the facilities-based communications subsidiary of IDACORP (NYSE:IDA), a $2.8 billion family of companies including the award-winning utility Idaho Power. IDACOMM shares a heritage of technical expertise, customer service, and financial stability uncommon in the current telecom landscape. Operating metro fiber networks in Boise Idaho, Las Vegas and Reno Nevada, IDACOMM possesses more than 25 years of fiber optic networking expertise. Further information about the company can be found at http://www.idacomm.com/. Additional information about the acquisition of Sierra Pacific Communications can be found here: http://www.idacomm-bpl.com/news- press-releases-events/press-release/sierra_purchase.php. About Mpower Mpower Communications Corp., the wholly-owned operating subsidiary of Mpower Holding Corporation (AMEX:MPE), is a leading facilities-based broadband communications provider offering a full range of data, telephony, Voice over IP and Web hosting services for small and medium-size business customers. Further information about the company can be found at http://www.mpowercom.com/. Contacts IDACOMM Media Contact: Cameron Christian Vice President Marketing Telephone: 208-514-3306 Email: Mpower Communications Investor Contact: Gregg Clevenger, Chief Financial Officer Telephone: 585-218-6547 Email: Mpower Communications Media Contact: Michele Sadwick, Vice President Telephone: 585-218-6542 Email: Forward-Looking Statements Under the safe harbor provisions of the Private Securities Litigation Reform Act of 1995, IDACOMM cautions investors that certain statements contained in this press release that state our and/or management's intentions, hopes, beliefs, expectations or predictions of the future are forward-looking statements. Management wishes to caution the reader that these forward-looking statements are not historical facts and are only estimates or predictions. Actual results, including projections with respect to IDACOMM's future operating performance and the benefits to be generated by the fiber network in Las Vegas may differ materially from those projected. We undertake no obligation to update publicly any forward-looking statements, whether as a result of future events, new information, or otherwise. DATASOURCE: IDACOMM CONTACT: Cameron Christian, Vice President Marketing of IDACOMM, +1-208-514-3306, ; or Investors, Gregg Clevenger, Chief Financial Officer, +1-585-218-6547, , or Media, Michele Sadwick, Vice President, +1-585-218-6542, , both of Mpower Communications Corp. Web site: http://www.idacomm.com/ http://www.mpowercom.com/

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