Midwest City, Oklahoma

Where Is Area Code 405?

Area code 405 is in central Oklahoma. It serves Oklahoma City and much of the surrounding region, including Midwest City, Edmond, Norman, Moore, and Stillwater. Midwest City is in Oklahoma County, just east of Oklahoma City, and it uses area code 405.

Area code 405 covers communities in and around the Oklahoma City metropolitan area. Counties and communities in the 405 region include places in Oklahoma County, Cleveland County, Canadian County, Logan County, and Payne County. The exact footprint has changed over time because of area code splits and an overlay.

The 405 region includes some of central Oklahoma’s best-known landmarks and institutions. These include the Oklahoma State Capitol in Oklahoma City, Tinker Air Force Base next to Midwest City, the University of Oklahoma in Norman, and Oklahoma State University in Stillwater. The area also includes the North Canadian River, which runs through Oklahoma City.

History of Area Code 405

Area code 405 is one of the original North American area codes created in 1947. It originally covered the entire state of Oklahoma. As telephone use grew, Oklahoma was divided into more area codes.

In 1997, area code 918 took over eastern Oklahoma, and 405 remained in the central and western part of the state. In 2011, western Oklahoma moved to area code 580, which left 405 serving central Oklahoma. In 2021, area code 572 was added as an overlay for the same geographic area as 405, and 10-digit dialing became required in the region.

Key Facts About Area Code 405

• Area code 405 is in Oklahoma, and its largest city is Oklahoma City.
• Area code 405 serves Midwest City, a city in Oklahoma County next to Oklahoma City and Tinker Air Force Base.
• Area code 405 is in the Central Time Zone.
• Area code 405 was created in 1947 as one of the original area codes in the North American Numbering Plan.
• Area code 405 originally covered all of Oklahoma before later splits created area codes 918 and 580.
• Area code 572 overlays area code 405, and both codes now serve the same central Oklahoma region.
• Major institutions in the 405 area include the University of Oklahoma in Norman and Oklahoma State University in Stillwater.
• The 405 area includes the Oklahoma City metropolitan area, which is the state’s main population and government center.

Frequently Asked Questions

What state is area code 405 in?

Area code 405 is in Oklahoma.

What major cities use area code 405?

Major cities that use area code 405 include Oklahoma City, Midwest City, Edmond, Norman, Moore, and Stillwater.

Is area code 405 a toll-free number?

No. Area code 405 is a geographic area code.