**Exhibit        32**

| **CERTIFICATION                  PURSUANT TO**                                      |
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| **18                  U.S.C. SECTION 1350,**                                        |
| **AS                  ADOPTED PURSUANT TO**                                         |
| **SECTION                  906 OF THE SARBANES-OXLEY ACT OF                  2002** |

| In                  connection with the Annual Report of Mpower Holding Corporation                  (the                  "Company") on Form 10-K for the period ending December 31, 2005                  as filed                  with the Securities and Exchange Commission on the date hereof                  (the                  "Report"), the undersigned, Rolla P. Huff, Chief Executive Officer                  of the                  Company and S. Gregory Clevenger, Chief Financial Officer of the                  Company,                  certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the                  Sarbanes-Oxley Act of 2002, that to the best of our                  knowledge: |
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|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |   |
| (1)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | The                  Report fully complies with the requirements of section 13(a) or                  15(d) of                  the Securities Exchange Act of 1934; and |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |   |
| (2)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | The                  information contained in the Report fairly presents, in all material                  respects, the financial condition and results of operations of                  the                  Company. |

|                                                                                                       |   |   |                                                                                                                  |
|------------------------------------------------------------------------------------------------------------|--------|--------|-----------------------------------------------------------------------------------------------------------------------|
| /s/ Rolla                  P. Huff                                                                    |   |   | /s/ S.                  Gregory Clevenger                                                                        |
|                                                                                                            |   |   |                                                                                                                       |
| Rolla                    P. HuffChief                    Executive OfficerMarch                    1, 2006 |   |   | S.                    Gregory ClevengerChief                      Financial OfficerMarch                      1, 2006 |

*The        foregoing Certification shall not be deemed incorporated by reference by        any        general statement incorporating by reference this report into any filing        under        the Securities Act of 1933 or under the Securities Exchange Act of 1934,        except        to the extent that we specifically incorporate this information by reference,        and shall not otherwise be deemed filed under such Acts.*

*A        signed original of this written statement required by Section 906 has been        provided to the Registrant and will be retained by the Registrant and furnished        to the Securities and Exchange Commission or its staff upon        request.*