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Exhibit 21.1
PRINCIPAL SUBSIDIARIES OF DYCOM INDUSTRIES, INC.

The following table sets forth the Registrant’s principal subsidiaries and the jurisdiction of incorporation of each. Each subsidiary is 100% owned by the Registrant or its subsidiaries.
SubsidiaryJurisdiction
Ansco & Associates, LLCDelaware
Blair Park Services, LLCDelaware
Bigham Cable Construction, Inc.Florida
Broadband Express, LLCDelaware
C-2 Utility Contractors, LLCDelaware
CableCom, LLCDelaware
Cavo Broadband Communications, LLCDelaware
CertusView Technologies, LLCDelaware
Communications Construction Group, LLCDelaware
Dycom Capital Management, Inc.Delaware
Dycom Corporate Identity, Inc.Delaware
Dycom Identity, LLCDelaware
Dycom Investments, Inc.Delaware
Engineering Associates, LLCGeorgia
Ervin Cable Construction, LLCDelaware
Fiber Technologies Solutions, LLCDelaware
Globe Communications, LLCNorth Carolina
Golden State Utility Co.Delaware
Ivy H. Smith Company, LLCDelaware
Jansen Cable Construction, Inc.Illinois
Kanaan Communications, LLCDelaware
Lambert’s Cable Splicing Company, LLCDelaware
Locating, Inc.Washington
NeoCom Solutions, LLCGeorgia
Niels Fugal Sons Company, LLCDelaware
North Sky Communications, LLCDelaware
Parkside Utility Construction, LLCDelaware
Pauley Construction, LLCArizona
Precision Valley Communications of Vermont, LLCDelaware
Prince Telecom, LLCDelaware
Professional Teleconcepts, LLCIllinois
Professional Teleconcepts, LLCNew York
RJE Telecom, LLCDelaware
Sage Telecommunications Corp. of Colorado, LLCColorado
Star Construction, LLCDelaware
TCS Communications, LLCDelaware
TelCom Construction, LLCMinnesota
Tesinc, LLCDelaware
Texstar Enterprises, LLCTexas
Tjader & Highstrom Utility Services, LLCDelaware
Trawick Construction Company, LLCFlorida
Triple-D Communications, LLCDelaware
Utility Technologies, Inc.Alaska
UtiliQuest, LLCGeorgia
VCI Construction, LLCDelaware
VCI Utility Services, LLCDelaware
White Mountain Cable Construction, LLCDelaware