EX-21.1 3 a2213021zex-21_1.htm EX-21.1
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Exhibit 21.1

In Effect as of January 25, 2013
Subsidiaries of:

 
   Jurisdiction

COGENT COMMUNICATIONS GROUP, INC. 

   (Delaware)

COGENT COMMUNICATIONS, INC. 

   (Delaware)

COGENT COMMUNICATIONS OF CALIFORNIA, INC. 

   (Delaware)

COGENT IH, LLC

   (Delaware)

COGENT WG, LLC

   (Delaware)

COGENT COMMUNICATIONS OF D.C., INC. 

   (Delaware)

COGENT COMMUNICATIONS OF FLORIDA, INC. 

   (Delaware)

COGENT COMMUNICATIONS OF MARYLAND, INC. 

   (Delaware)

COGENT COMMUNICATIONS OF TEXAS, INC. 

   (Delaware)

COGENT CANADA, INC. 

   (Nova Scotia)

CCM COMMUNICATIONS S. de R.L. de C.V. 

   (Mexico)

COGENT JAPAN G.K. 

   (Japan)

COGENT EUROPE, S.À.R.L. 

   (Luxembourg)

COGENT COMMUNICATIONS BELGIUM SPRL

   (Belgium)

COGENT COMMUNICATIONS BULGARIA EOOD

   (Bulgaria)

COGENT INTERNET d.o.o. 

   (Croatia)

COGENT COMMUNICATIONS CZECH REPUBLIC, s.r.o. 

   (Czech Republic)

COGENT COMMUNICATIONS DENMARK ApS

   (Denmark)

COGENT COMMUNICATIONS ESTONIA, OÜ

   (Estonia)

COGENT COMMUNICATIONS FINLAND OY

   (Finland)

COGENT COMMUNICATIONS FRANCE, SAS

   (France)

C.C.D. COGENT COMMUNICATIONS DEUTSCHLAND GMBH

   (Germany)

COGENT HELLAS INTERNET SERVICES SOLE MEMBER LLC

   (Greece)

COGENT COMMUNICATIONS HUNGARY, KFT. 

   (Hungary)

CCE COGENT INTERNET SERVICES LIMITED

   (Ireland)

COGENT COMMUNICATIONS ITALIA S.R.L. 

   (Italy)

COGENT LATVIA SIA

   (Latvia)

COGENT LITHUANIA UAB

   (Lithuania)

COMPANY FOR INTERNET SERVICES COGENT MACEDONIA DOOEL SKOPJE

   (Macedonia)

Î.C.S. COGENT INTERNET MLD S.R.L. 

   (Moldova)

COGENT COMMUNICATIONS NETHERLANDS B.V. 

   (The Netherlands)

COGENT NORWAY AS

   (Norway)

COGENT COMMUNICATIONS POLAND Sp. zo. o. 

   (Poland)

COGENT COMMUNICATIONS PORTUGAL, LDA. 

   (Portugal)

COGENT COMMUNICATIONS ROMANIA SRL

   (Romania)

COGENT SERB d.o.o. BEOGRAD

   (Serbia)

COGENT COMMUNICATIONS LLC

   (Russia)

COGENT COMMUNICATIONS SLOVAKIA s.r.o. 

   (Slovak Republic)

COGENT ADRIA, KOMUNIKACIJE , d.o.o. 

   (Slovenia)

COGENT COMMUNICATIONS ESPAÑA S.L. 

   (Spain)

COGENT COMMUNICATIONS SWEDEN AB

   (Sweden)

COGENT INTERNET SWITZERLAND LLC

   (Switzerland)

COGENT COMMUNICATIONS INTERNET SERVICES LLC

   (Turkey)

TOV COGENT COMMUNICATIONS UKRAINE

   (Ukraine)

COGENT COMMUNICATIONS UK LTD

   (United Kingdom)



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