Mpower First Quarter Earnings Notification

Apr 23, 2001, 01:00 ET from Mpower Communications Corp.

    ROCHESTER, N.Y., April 23 /PRNewswire/ --
 Mpower Communications Corp. (Nasdaq:   MPWR), a provider of broadband high-speed
 Internet access and telephony services to business customers, will hold a
 public conference call to discuss its first quarter results on Wednesday, May
 2, 2001 at 9:00 a.m. (EST).  To access the call, dial 888-849-9184 and
 reference "Mpower First Quarter 2001 Results."  A live audio Webcast is also
 available using Windows Media Player by visiting Mpower's Website at
 http://www.mpowercom.com/corpinfo/relationships.htm.
     A replay of the call will be available from Wednesday, May 2, 2001 at
 11:00 a.m. (EST) through Wednesday, May 9, 2001 at 11:00 a.m. (EST) by dialing
 800-633-8284.  The reservation number for the replay is 18518622. The
 on-demand (replay) audio Webcast will be available on the Website through June
 2, 2001.
 
     About Mpower Communications Corp.
     Mpower Communications Corp. (Nasdaq:   MPWR) is 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.
 
 

SOURCE Mpower Communications Corp.
    ROCHESTER, N.Y., April 23 /PRNewswire/ --
 Mpower Communications Corp. (Nasdaq:   MPWR), a provider of broadband high-speed
 Internet access and telephony services to business customers, will hold a
 public conference call to discuss its first quarter results on Wednesday, May
 2, 2001 at 9:00 a.m. (EST).  To access the call, dial 888-849-9184 and
 reference "Mpower First Quarter 2001 Results."  A live audio Webcast is also
 available using Windows Media Player by visiting Mpower's Website at
 http://www.mpowercom.com/corpinfo/relationships.htm.
     A replay of the call will be available from Wednesday, May 2, 2001 at
 11:00 a.m. (EST) through Wednesday, May 9, 2001 at 11:00 a.m. (EST) by dialing
 800-633-8284.  The reservation number for the replay is 18518622. The
 on-demand (replay) audio Webcast will be available on the Website through June
 2, 2001.
 
     About Mpower Communications Corp.
     Mpower Communications Corp. (Nasdaq:   MPWR) is 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.
 
 SOURCE  Mpower Communications Corp.