Have a question? Need an answer? Cogent has a presence in most major cities across North America and Europe. Our largest offices are listed below. Please feel free to contact any of our local offices so we can guide you quickly and efficiently to whatever information you need.

Cogent Communications, Inc.
(Corporate Headquarters)
1015 31st Street, NW
Washington, DC 20007
UNITED STATES OF AMERICA
Office: 1-202-295-4200
E-mail: info@cogentco.com

Cogent Communications Espana SA
C/ Cardenal Marcelo Spínola 42, Planta 4ª Dcha.
28016 Madrid
SPAIN
Office: 34 91 102 2527
E-mail: ES-Info@cogentco.com

Cogent Canada, Inc.
220 Yonge Street
Suite 211
Toronto, ON M5B 2H1
CANADA
Office: 1-416-860-8080
E-mail: info@cogentco.com

Cogent Communications Netherlands BV (Benelux)
Kruislaan 400
1098 SM Amsterdam
THE NETHERLANDS
Office: 31 (0) 20 888 48 74
E-mail: BNL-Info@cogentco.com

Cogent Communications UK Ltd
Trafalgar House
11 Waterloo Place
London SW1Y 4AU
UNITED KINGDOM
Office: 44 (0) 20 7510 9201
E-mail: UK-Info@cogentco.com

C.C.D. Cogent Communications Deutschland GmbH
Stephanstrasse 3
D-60313 Frankfurt am Main
GERMANY
Office: 49 69 299896 0
E-mail: DE-Info@cogentco.com

Cogent Communications France SAS
77 Boulevard de la Republique
92257 La Garenne Colombes cedex
FRANCE
Office: 33 (0) 1 49031800
E-mail: FR-Info@cogentco.com

Cogent Communications Nordics
Kruislaan 400
1098 SM Amsterdam
THE NETHERLANDS
Office: 31 (0) 20 888 48 74
E-mail: SCA-Info@cogentco.com