Contact Us

If you would like to contact GTT, please complete the general inquiry form below and we will be back in touch with you shortly. Or you can call us at one of the numbers below.

General Inquiries


AMERICAS:

+1 703 442 5500

EMEA/APAC:

+44 (0)20 7489 7200

Sales Inquiries


AMERICAS:

+1 512 592 4858

EMEA:

+44 (0)20 7489 7200

APAC:

+852 8107 1088

Contact Our GNOC


If you are experiencing service issues, please login to your EtherVision account or reference your Client Guide. You may also contact us via phone:

AMERICAS:

+1 877 385 5252
+1 800 583 1388
+1 703 442 5539

EMEA:

+44 (0)20 7489 4200

Billing Inquiries


Please call the phone number listed on your invoice or send an email to: [email protected]

GTT Worldwide Offices

 

Atlanta

3379 Peachtree Road NE, Suite 925 Atlanta, GA 30326 +1 703 442 5500

 

Austin

9606 N Mopac Expressway, Suite 800 Austin, TX 78759 +1 512 794 6081

 

Boston (Lynn)

91 Commercial Street Lynn, MA 01905 +1 703 442 5500

 

Boston (Waltham)

265 Winter Street Waltham, MA 02451 +1 703 442 5500

 

Chicago

180 North LaSalle Street, Suite 2430 Chicago, IL 60601 +1 703 442 5500

 

Chicago

230 W. Superior Street Floor 2 Chicago. IL 60654

 

Dallas

7460 Warren Parkway, Suite 220 Frisco, TX 75034 +1 703 442 5500

 

Denver

7600 East Orchard Road, Suite 270N Greenwood Village, CO 80111

 

Denver (Sales)

5555 DTC Parkway, Suite 360 Greenwood Village, CO 80111 +1 703 442 5500

 

Halifax

132 Ketch Harbour Road Halifax, Nova Scotia B3V1J4 +1 703 442 5500

 

Los Angeles

535 Anton Blvd. #800 Costa Mesa, CA 92626 +1 703 442 5500

 

Miami

500 W. Cypress Creek Road Suite 300 Ft. Lauderdale, FL 33309

 

Minneapolis

505 Waterford Park, Suite 465 Plymouth, MN 55441

+1 703 442 5500

 

New York

One Penn Plaza, Suite 1005 New York, NY 10119 +1 646 254 6800

 

Philadelphia

2550 Eisenhower Avenue, Suite B208 Norristown, PA 19403 +1 703 442 5500

 

Phoenix

3300 N. Central Avenue, Suite 510 Phoenix, AZ 85012 +1 703 442 5500

 

Pittsburgh

1321 Connellsville Road Lemont Furnace, PA 15456 +1 703 442 5500

 

Rochester

1048 University Avenue, Suite 3 Rochester, NY 14607 +1 703 442 5500

 

San Francisco

6700 Koll Center Parkway, Suite 200 Pleasanton, CA 94566 +1 703 442 5500

 

San Jose

2510 Zanker Road San Jose, CA 95131 +1 866 226 4244

 

Seattle

One Convention Place 701 Pike Street, Suite 1100 Seattle, WA 98101 +1 703 442 5500

 

Toronto

155 Wellington Street West, Suite 3740 Toronto, ON M5V 3H1

+1 703 442 5500

 

Vienna

Tysons Intl. Plaza 1921 Gallows Road, Suite 800 Vienna, VA 22182

+1 703 442 5500

 

Washington

7900 Tysons One Place, Suite 1450 McLean, VA 22102 +1 703 442 5500

 

Berlin

Europarc Dreilinden Albert-Einstein-Ring 5 D-14532 Kleinmachnow Germany

 

Bracknell

St. James House Oldbury Bracknell RG12 8TH UK

 

Cagliari

Viale Bonaria 66, 09125 Cagliari (CA), Italy +39 (0) 70 460 0700

 

Copenhagen

Niels Juels Gade 5, 3.sal DK-1059 Copenhagen K Denmark

 

Dublin

International Exchange Centre Clonshaugh Industrial Estate, Clonshaugh Dublin 17, D17 AW86 +353 1 8673686

 

Düsseldorf

Prinzenallee 9 D-40549 Dusseldorf Germany

 

Frankfurt

Hugenottenallee 167 63263 Neu-isenburg, Germany +49 610 2823 5400

 

Frankfurt

Weismueller Strasse 26 D-60314 Frankfurt Germany

 

Frankfurt – Eschborn

Schwalbacher Strasse 60-62 65760 Eschborn Germany

 

Geneva

Chemin de l’Epinglier 2 Meyrin Geneva CH-1217 Switzerland

 

Gothenburg

Sweden AB Lilla Bommen 5 Gothenburg 41104 Sweden

 

Hoddesdon

Computer Building Geddings Road Hoddesdon EN11 0NT UK

 

London

24th Floor, 125 Old Broad Street London, EC2N 1AR United Kingdom +44 (0)20 7489 7200

 

London

31st Floor 25 Canada Square Canary Wharf London, E14 5LQ UK

 

Madrid

Pol. Emp. Herrera Oria Lezama, 4 Madrid 28034 Spain

 

Munich

Carl-Zeiss-Ring 19 D-85737 Ismaning Germany

 

Netherlands

Koolhovenlaan 120 1119 NH Schiphol-Rijk The Netherlands

 

Nottingham

3rd Floor, New Castle House Castle Boulevard Nottingham NG7 1FT UK

 

Paris – Aubervilliers

34 rue des Gardinoux Aubervilliers 93300 France

 

Paris – Nanterre

55 Avenue des Champs Pierreux 92000 Nanterre France

 

Prague

Siemensova Street 2717/4 Prague 5 155 00 Czech Republic

 

Rome

Via Cornelia 498 Roma 00166 Italy

 

Sofia

Business Building Megapark 1st Floor 115G Tsarigradsko Shose Blvd. Sofia 1784 Bulgaria

 

Southport

Southport Business Park Wight Moss Way Southport, UK +44 01704 322313

 

Stockholm

Sveavägen 163 Stockholm S-113 46 Sweden

 

Vienna

Lemböckgasse 63 Stiege 2 A-1230 Wien Austria

 

Zaventem – Brussels

Leuvensesteenweg 573 Block 2C 1930 Zaventem Belgium

 

Zürich

Josefstrasse 225 Zürich CH-8005 Switzerland

 

Hong Kong

6th Floor, Bonham Circus 40 Bonham Strand Sheung Wan +852 8107 1088

 

Hong Kong

Unit 1001, 10/F Infinitus Plaza 199 Des Voeux Road Central Hong Kong

 

Pune

8th Floor, Platinum Tech Park, Panchshil Ganeshkhind Rd Narveer Tanaji Wadi, Shivajinagar, Pune, Maharashtra 411005 India

 

Shanghai

Chamtime Plaza, Jinke Road 2889 Building B Unit 204 201203 Shanghai Pudong Zhangjiang China

 

Singapore

10 Changi Business Park Central 2 #05-01, HansaPoint CBP Singapore 486030 Singapore

 

São Paulo

Av. Nacoes Unidas 12551 9th Floor São Paulo – SP – 04578-903 Brazil