ONE CALL (United States)

811 logo

On March 10, 2005, the Federal Communications Commission (FCC) approved the use of 811 as a national call-before-you-dig telephone number, and the Commission ordered that 811 be operational two years from publication of its designation in the Federal Register. Every state has different rules and regulations governing digging, some stricter than others. In addition, 62 separate One Call Centers serve different areas of the country; now 811 will connect you directly to your local one call center... more info at

"CALL BEFORE YOU DIG" Utility Notification Center serving Oregon, Washington, Montana and Hawaii... more info at

"MISS UTILITY" Utility Notification Center serving Delaware, Maryland and Washington, DC... more info at

ONE CALL (Canada)

"Ontario One Call Ltd." or "ON1Call", is a private, not for profit corporation formed in 1996 to establish a call center to receive excavator locate requests within the Province of Ontario and to notify the members with underground facilities in the vicinity of the dig site... more info at their web site or call 1-800-400-2255.

"BC One Call" is province-wide non-profit organization established in 1994 to provide the excavating community, including contractors and homeowners, with a means to request information on the location of underground services... more info at

"Alberta One Call Corporation" was incorporated as a non-profit corporation under the Business Corporations Act of Alberta on 25 August 1982 to prevent damage to buried facilities through education, advocacy, public awareness and dependable cost-effective communication and exchange of information between members and those intending to disturb the ground... more info at

"Sask 1st Call" is a “Call Before You Dig” location screening and notification service for contractors and customers who are planning to dig or excavate... more info at

"Info-Excavation" offers a free underground network location service to individuals, companies and municipalities in the province of Quebec... more info at

Links to One Call and Call Before You Dig Services for Utility Locating by Global GPR Services Inc.