Area Code 405 History:
Area code 405 was put into service. Area code 405 has been split two times. In 1953 area code 405 was split to form area code 918. In 1997 area code 405 was split to form area code 580.
Counties in Oklahoma within area code 405 include:
Blaine County, Caddo County, Canadian County, Cleveland County, Garvin County, Grady County, Hughes County, Kingfisher County, Lincoln County, Logan County, McClain County, Okfuskee County, Oklahoma County, Payne County, Pottawatomie County, Seminole County, Stephens County, and Washita County.
Major cities or places in Oklahoma within area code 405 include:
Area code 405 serves a large portion of central Oklahoma including Oklahoma City and the larger cities and communities of Bethany, Del City, Edmond, Midwest City, Moore, Norman, Shawnee, and Stillwater in addition to many smaller communities.