PAETEC Holding Corp. - FORM 10-K - EX-21 - EXHIBIT 21 - March 12, 2010

Attached files

file filename
EX-32 - EXHIBIT 32 - PAETEC Holding Corp.dex32.htm
EX-23 - EXHIBIT 23 - PAETEC Holding Corp.dex23.htm
EX-4.3.2 - EXHIBIT 4.3.2 - PAETEC Holding Corp.dex432.htm
EX-12.1 - EXHIBIT 12.1 - PAETEC Holding Corp.dex121.htm
EX-31.2 - EXHIBIT 31.2 - PAETEC Holding Corp.dex312.htm
EX-4.5.4 - EXHIBIT 4.5.4 - PAETEC Holding Corp.dex454.htm
EX-4.6.4 - EXHIBIT 4.6.4 - PAETEC Holding Corp.dex464.htm
EX-31.1 - EXHIBIT 31.1 - PAETEC Holding Corp.dex311.htm
EX-10.22 - EXHIBIT 10.22 - PAETEC Holding Corp.dex1022.htm
EX-10.18 - EXHIBIT 10.18 - PAETEC Holding Corp.dex1018.htm
10-K - FORM 10-K FOR THE FISCAL YEAR ENDED DECEMBER 31, 2009 - PAETEC Holding Corp.d10k.htm

Exhibit 21

PAETEC Holding Corp. Subsidiaries

 

Subsidiary

  

State of Incorporation or Organization

PAETEC Corp.   Delaware
PaeTec Communications, Inc.   Delaware
PAETEC Communications of Virginia, Inc.   Virginia
PAETEC Integrated Solutions Group, Inc.   Delaware
PaeTec Software Corp.   New York
PAETEC iTel L.L.C.   North Carolina
US LEC LLC   Delaware
US LEC Communications LLC(1)   North Carolina
US LEC of Alabama LLC(1)   North Carolina
US LEC of Florida LLC(1)   North Carolina
US LEC of North Carolina LLC(1)   North Carolina
US LEC of Georgia LLC(1)   Delaware
US LEC of Tennessee LLC(1)   Delaware
US LEC of South Carolina LLC(1)   Delaware
US LEC of Maryland LLC(1)   North Carolina
US LEC of Pennsylvania LLC(1)   North Carolina
US LEC of Virginia L.L.C.(1)   Delaware
Allworx Corp.   Delaware
MPX, Inc.   Delaware
Technology Resource Solutions, Inc.(2)   New York
McLeodUSA LLC   Delaware
McLeodUSA Information Services LLC   Delaware
McLeodUSA Telecommunications Services, L.L.C(1)   Iowa
McLeodUSA Purchasing, L.L.C.   Iowa
U.S. Energy Partners LLC   New York
PAETEC Realty LLC   New York

 

(1) Doing business as PAETEC Business Services.
(2) Doing business as PAETEC Energy.

PAETEC Holding Corp. Reports