List of Oklahoma area codes From Wikipedia, the free encyclopedia The state of Oklahoma is served by the following area codes: More information Area code, Year created ... AreacodeYearcreatedParentNPAOverlayNumbering plan area 4051947–405/572Central Oklahoma, including Oklahoma City 5722021405 9181953405539/918 Northeastern Oklahoma, including Tulsa 5392011918 5801997405– Western and southern Oklahoma Close Map of Oklahoma with area code boundaries See also List of North American Numbering Plan area codes Original North American area codes References Related Articles
