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How to get in touch with Ontario One Call.

Contact Information

To request a locate or check a status, please use the Homeowner, Contractor, or Infrastructure Owner Links

Our contact centre is open 24/7:  1-800-400-2255

For Corporate Offices:

Phone: 519.265.8006 or Toll Free: 844.257.9490

Fax: 519.837.5410