Before you dig

Call Ontario One Call 1-800-400-2255 (24 hrs call centre) or visit the website at

IMPORTANT - There is no situation that allows you to beginning digging before a request to locate services is performed.

Procedures for Calling Locates

Information you will need available when you call for locates before digging or excavating:
  •  Address where locates needs to be done
  •  Closest intersections / cross streets
  •  Side of property that is being excavated
  •  Start time of job (emergency or planned job)
It is important to keep a record of who you spoke with, the information that was given to you, as well as the date and time the call was made