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Maintenance Scheduled Down-Time

Attention Users

Maintenance Scheduled Down-Time


On June 1st, 2017 starting at 6:00 PM and lasting up to 12:00 AM (midnight EST) Ontario One Call will be performing maintenance on its information technology systems.

During this time we will only accept emergency locate requests via telephone and dispatch via a manual process.

Call 1-800-400-2255

The following services will not be available during the maintenance window.

– Web Portal

– Contractor Bridge

360 feedback (TCP/IP and Webservice)

– Corporate Website

– Maps on the web

– Subscriptions on the web


Ontario One Call