Call 811 Call 811



Explore damage prevention information, local contacts and rules for safe digging in Oklahoma.

One Call Centers

811 or


6908 N. Robinson Ave.
Oklahoma City OK 73116


24 / 7

Advance Notice:

No more than ten (10) days nor less than forty-eight (48) hours, excluding the date of notification, Saturdays, Sundays and legal holidays
Number of days in advance of a digging project that you need to notify the one call center of your intent to dig.

Marks Valid:

Depends on visibility & 10 business days
Defines the period of time the facility marks (paint, flags, stakes, etc.) are valid according to state law or practice.