As Of	Filer	Filing¹	For·On·As	Docs:Size	Issuer		Filing Agent

  6/6/06  MCCC ICG Holdings LLC             SC 13D/A               4:155K Mpower Holding Corp.              Toppan Merrill/FA        
          Icg Communications, Inc.³
 5/15/06  MCCC ICG Holdings LLC             SC 13D/A               4:222K Mpower Holding Corp.              Toppan Merrill/FA        
          Icg Communications, Inc.³
          MCCC Icg Holdings LLC³
  1/7/05  MCCC ICG Holdings LLC             SC 13D                 4:64K  Mpower Holding Corp.              Shearman & Sterling LLP  
          Icg Communications, Inc.³
          MCCC Icg Holdings LLC³

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¹	Filing/Form Type:
	SC 13D	Statement of Acquisition of Beneficial Ownership by an “Active” Investor — Schedule 13D.
	/A	Amendment to, or Amended version of, a previous Filing of this Type.
³	Group Member:  A Registrant or non-Registrant party to this Filing made by a Group.