- Buyer's guide
Know What’s Below – Call Before You Dig
Don't gamble with your safety — if you're a professional excavator or a homeowner, smart digging always requires a call to 811. Knowing where underground utility lines are buried before you dig will help protect you from injury and prevent damages to utilities, service disruptions and potential fines and repair costs.
The depth of utility lines varies, and there may be multiple utility lines in one common area. Marked lines show you the approximate location of underground lines and help prevent undesired consequences such as injury, service disruptions to an entire neighborhood, or costly fines and repair costs.
The national 811 number will not replace your local one call number. The One Call process will remain the same and continue to notify your local affected utility companies, who will continue to mark your underground lines for free. With more than 62 local one call numbers across the country, 811 eliminates the confusion of multiple "Call Before You Dig" numbers by providing one national number you can call to get your lines marked. A complete list of local service numbers are provided here for fast, easy reference.
Alabama One Call
Arizona Blue Stake
Arkansas One Call
Underground Service Alert North
Underground Service Alert South
Utility Notification Center of Colorado
Call Before You Dig
Sunshine State One Call of Florida
Utilities Protection Center
Utility Notification Center
DIGGER (Chicago Utility Alert Network)
Indiana Underground Plant Protection Service