| | Jurisdiction
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COGENT COMMUNICATIONS GROUP, INC. | | (Delaware corporation) |
COGENT COMMUNICATIONS, INC. | | (Delaware corporation) |
COGENT COMMUNICATIONS OF CALIFORNIA, INC. | | (Delaware corporation) |
COGENT GREAT LAKES COMMUNICATIONS, INC. | | (Delaware corporation) |
COGENT INTERNET, INC. | | (Delaware corporation) |
NETWORK EQUIPMENT SOLUTIONS, LLC | | (Delaware LLC) |
ALLIED RISER COMMUNICATIONS CORPORATION | | (Delaware corporation) |
ALLIED RISER OPERATIONS CORPORATION | | (Delaware corporation) |
COGENT COMMUNICATIONS WORLDWIDE, INC. | | (Delaware corporation) |
ALLIED RISER COMMUNICATIONS CORPORATION OF CANADA INC. | | (Nova Scotia corporation) |
SHARED TECHNOLOGIES OF CANADA INC. | | (Canadian Federal corporation) |
FIBER SERVICES OF CANADA, LTD. | | (Nova Scotia corporation) |
COGENT COMMUNICATIONS OF ARIZONA, INC. | | (Delaware corporation) |
ALLIED RISER OF CALIFORNIA, INC. | | (Delaware corporation) |
COGENT COMMUNICATIONS OF CONNECTICUT, INC. | | (Delaware corporation) |
COGENT COMMUNICATIONS OF D.C., INC. | | (Delaware corporation) |
COGENT COMMUNICATIONS OF FLORIDA, INC. | | (Delaware corporation) |
COGENT COMMUNICATIONS OF GEORGIA, INC. | | (Delaware corporation) |
COGENT COMMUNICATIONS OF ILLINOIS, INC. | | (Delaware corporation) |
COGENT COMMUNICATIONS OF LOUISIANA, INC. | | (Delaware corporation) |
COGENT COMMUNICATIONS OF MARYLAND, INC. | | (Delaware corporation) |
COGENT COMMUNICATIONS OF MASSACHUSETTS, INC. | | (Delaware corporation) |
COGENT COMMUNICATIONS OF MICHIGAN, INC. | | (Delaware corporation) |
COGENT COMMUNICATIONS OF MINNESOTA, INC. | | (Delaware corporation) |
COGENT COMMUNICATIONS OF MISSOURI, INC. | | (Delaware corporation) |
COGENT COMMUNICATIONS OF NEW JERSEY, INC. | | (Delaware corporation) |
COGENT COMMUNICATIONS OF NEW YORK, INC. | | (Delaware corporation) |
COGENT COMMUNICATIONS OF NORTH CAROLINA, INC. | | (Delaware corporation) |
COGENT COMMUNICATIONS OF OKLAHOMA, INC. | | (Delaware corporation) |
COGENT COMMUNICATIONS OF OHIO, INC. | | (Delaware corporation) |
COGENT COMMUNICATIONS OF PENNSYLVANIA, INC. | | (Delaware corporation) |
COGENT COMMUNICATIONS OF TEXAS, INC. | | (Delaware corporation) |
COGENT COMMUNICATIONS OF UTAH, INC. | | (Delaware corporation) |
COGENT COMMUNICATIONS OF VIRGINIA, INC. | | (Virginia corporation) |
COGENT COMMUNICATIONS OF WASHINGTON, INC. | | (Delaware corporation) |
COGENT COMMUNICATIONS OF WISCONSIN, INC. | | (Delaware corporation) |
SYMPOSIUM GAMMA, INC. | | (Delaware corporation) |
FIRSTMARK COMMUNICATIONS PARTICIPATIONS, SARL | | (Luxembourg corporation) |
LAMBDANET COMMUNICATIONS France, SAS | | (French corporation) |
LAMBDANET ESPANA S.A. | | (Spanish corporation) |
FIRSTMARK COMMUNICATIONS HUNGARY KFT | | (Hungarian corporation) |
FIRSTMARK COMMUNICATIONS SWITZERLAND GMBH | | (Swiss corporation) |
LAMBDANET COMMUNICATIONS (UK) LTD. | | (English corporation) |
LAMBDANET COMMUNICATIONS BELGIUM SPRL | | (Belgian corporation) |
LAMBDANET COMMUNICATIONS NETHERLANDS B.V. | | (Dutch corporation) |