OKIE811 is FREE service that provides homeowners & professional excavators one-stop to get all underground lines located and marked. When you're planning to dig, call 811 or go online to www.okie811.org and we'll send notifications to those that own and operate underground lines. Within 2 business days the lines will be marked. Our organization also provides statewide safety and damage prevention programs that help eliminate the exposures that can cause damages.