Attached files
| file | filename |
|---|---|
| 10-K - 10-K - COGENT COMMUNICATIONS HOLDINGS, INC. | a2202298z10-k.htm |
| EX-23.1 - EX-23.1 - COGENT COMMUNICATIONS HOLDINGS, INC. | a2202298zex-23_1.htm |
| EX-31.1 - EX-31.1 - COGENT COMMUNICATIONS HOLDINGS, INC. | a2202298zex-31_1.htm |
| EX-31.2 - EX-31.2 - COGENT COMMUNICATIONS HOLDINGS, INC. | a2202298zex-31_2.htm |
| EX-32.1 - EX-32.1 - COGENT COMMUNICATIONS HOLDINGS, INC. | a2202298zex-32_1.htm |
| EX-32.2 - EX-32.2 - COGENT COMMUNICATIONS HOLDINGS, INC. | a2202298zex-32_2.htm |
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In Effect as of December 31, 2010
Subsidiaries of:
| |
Jurisdiction | |
|---|---|---|
| COGENT COMMUNICATIONS GROUP, INC. | (Delaware) | |
| COGENT COMMUNICATIONS, INC. | (Delaware) | |
| COGENT COMMUNICATIONS OF CALIFORNIA, INC. | (Delaware) | |
| ALLIED RISER COMMUNICATIONS CORPORATION | (Delaware) | |
| ALLIED RISER OPERATIONS CORPORATION | (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 EUROPE, S.À.R.L. | (Luxembourg) | |
| COGENT 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 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) | |
| 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 COMMUNICATIONS d.o.o. | (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) | |
| TOV COGENT COMMUNICATIONS UKRAINE | (The Ukraine) | |
| COGENT COMMUNICATIONS INTERNET SERVICES LLC | (Turkey) | |
| COGENT COMMUNICATIONS UK LTD | (United Kingdom) |