The area code 405 is located in Midwest City, Oklahoma.
Area code 405 serves Midwest City, Oklahoma, and the heart of central Oklahoma, including much of the Oklahoma City metro. Midwest City sits just east of Oklahoma City and is closely tied to Tinker Air Force Base, a major military and aviation hub. The 405 area code supports government, healthcare, education, and aerospace across Oklahoma County and nearby communities, and calls here follow Central Time (CT).
Major cities and landmarks in the 405 area include:
Statistic: Overlay area code 572 for 405 began in 2021 (source: NANPA).
Established in 1947 as one of the original North American Numbering Plan codes, 405 once covered most of Oklahoma. It later split to form 918 in 1953 and 580 in 1997, leaving 405 focused on the central region. Today, 405 is overlaid by 572, so 10-digit dialing is required, and new phone numbers may be assigned either 405 or 572 while serving the same geographic area. This mix of legacy 405 lines and new 572 numbers keeps the fast-growing Oklahoma City area connected without changing existing 405 phone numbers.