XO HOLDINGS INC - FORM 10-K - EX-21.1 - March 31, 2010

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10-K - 10-K - XO HOLDINGS INCw77706e10vk.htm
EX-23.1 - EX-23.1 - XO HOLDINGS INCw77706exv23w1.htm
EX-31.1 - EX-31.1 - XO HOLDINGS INCw77706exv31w1.htm
EX-32.1 - EX-32.1 - XO HOLDINGS INCw77706exv32w1.htm
EX-31.2 - EX-31.2 - XO HOLDINGS INCw77706exv31w2.htm
EX-23.2 - EX-23.2 - XO HOLDINGS INCw77706exv23w2.htm
Exhibit 21.1
SUBSIDIARIES OF XO HOLDINGS, INC.
     
    Jurisdiction of
Entity Name   Incorporation
 
    
Nextlink Wireless, Inc.
  Delaware
V & K Holdings, Inc.
  Delaware
XO Communications, LLC
  Delaware
 
    
XO Communications, LLC Subsidiaries:
    
Telecommunications of Nevada, LLC (50% interest)
  Delaware
XO Communications Services, Inc.
  Delaware
XO Interactive, Inc.
  Washington
XO International Holdings, Inc.
  Delaware
XO Nevada Merger Sub., Inc.
  Delaware
 
    
XO Communications Services, Inc. Subsidiaries:
    
XO Virginia, LLC
  Washington
 
    
XO International Holdings, Inc. Subsidiaries:
    
XO International, Inc.
  Delaware
XO Asia Limited (1% interest)
  Hong Kong
XO NS, Inc.
  Canada
 
    
XO International, Inc. Subsidiary:
    
XO Asia Limited (99% interest)
  Hong Kong
 
    
XO Nevada Merger Sub., Inc. Subsidiary:
    
Telecommunications of Nevada, LLC (50% interest)
  Delaware

 

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