ROCHESTER, NY – August 24, 2004 -- Mpower Communications Corp. (AMEX:MPE), a leading provider of broadband Internet access and telephone services to business customers, will be presenting at the Kaufman Bros., L.P. 7 th Annual Communications, Media & Technology Conference on Thursday, September 9, 2004 from 3:35 to 4:05 p.m. EDT.

Mpower Communications Chairman and Chief Executive Officer Rolla P. Huff and Chief Financial Officer S. Gregory Clevenger will present an overview of the company, its growth strategies and position within the telecommunications industry.

The conference is being held at the W New York Hotel, 541 Lexington Avenue New York, NY.

About Mpower Communications

Mpower Communications (AMEX:MPE) is a facilities-based broadband communications provider established in 1996. Mpower offers 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 www.mpowercom.com.