AT&T in Canada

AT&T has a long-established global presence in and history of supporting business customers across Canada.

AT&T in Canada

With offices in Thornhill, Montreal, Calgary and Vancouver, AT&T provides local account management, design and operational support to both Canadian-headquartered organizations as well as Canadian branches of global customers. AT&T’s business customers in Canada include many Fortune 500 companies.

Clients can benefit from an industry-leading portfolio that includes mobility, the Internet of Things, network, network security, cloud, hosting, BVoIP*, unified communications and application services.

Supporting global enterprises across a wide-range of industries such as business services, hospitality, financial services, manufacturing and energy, AT&T’s offices in Canada should be the first point of contact for any business or organization looking to connect and mobilize its operations, assets and information.

* Read the Modern Slavery Statement 2024 (PDF)

* Read the 9-8-8 Advisory (PDF)

* Read the service advisory on Non-Nomadic BVoIP (with or without Advanced 9-1-1) (PDF)

* Read the service advisory on Nomadic BVoIP advisory (with or without Advanced E9-1-1) (PDF)

* Read the service advisory regarding 911 dialing and limitations of Service, for customers of AT&T Office@Hand Service used on a desk top handset, a laptop, or an iPhone or Android Phone

* Read the Customer Advisory_STIR SHAKEN Canada (PDF)

  • Thornhill
  • AT&T Global Services Canada Co.
  • Suite 600
  • 55 Commerce Valley Drive West
  • Thornhill, ON
  • L3T 7V9 Canada
  • Montreal
  • AT&T Global Services Canada Co.
  • 3 Place Ville Marie, Suite 400
  • Montreal, H3B 2E3
  • Quebec
  • Canada
    • Calgary
    • AT&T Global Services Canada Co.
    • 700 Avenue SW 2nd floor, Suite 260
    • Calgary, AB T2P3J5
    • Canada

Additional Regional Market Information

  • Vancouver
  • AT&T Global Services Canada Co.
  • 885 West Georgia Street, Suite 1502. 15th floor
  • Vancouver, BC V6C 3E8
  • Canada