• SOUTH DAKOTA
South Dakota One Call (800) 781-7474

• TENNESSEE
Tennessee One Call System (800) 351-1111

• TEXAS
Lone Star Notification Center (800) 669-8344
Texas Excavation Safety System (800) 344-8377
Texas One Call System (800) 245-4545 00

• UTAH
Blue Stakes Location Center (800) 662-4111 00

• VERMONT
Dig Safe System, Inc (888) 344-7233

• VIRGINIA
Miss Utility of Virginia (800) 552-7001

• WASHINGTON
Washington Call Before You Dig (800) 424-5555

• WASHINGTON, DISTRICT OF COLUMBIA
Miss Utility (800) 257-7777

• WEST VIRGINIA
Miss Utility of West Virginia (800) 245-4848

• WISCONSIN
Diggers Hotline (800) 242-8511

• WYOMING
Wyoming One-Call (800) 348-1030
Call Before You Dig of Wyoming (800) 849-2476
Utilities Underground Location Center (800) 454-5555

• CANADA
Alberta: Alberta One-Call Location Corporation (800) 242-3447
British Columbia: BC One Call (800) 474-6886
Ontario: Ontario One Call Ltd. (800) 400-2255
Quebec: Info-Excavation (800) 663-9228

• AUSTRALIA
Australian Dial Before You Dig 1100