List of Oklahoma area codes
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The state of Oklahoma is served by the following area codes:
- 405/572: Central Oklahoma including Oklahoma City (original area code created in 1947; 572 added as overlay on April 24, 2021{{cite news|url=https://kfor.com/news/local/check-your-contact-list-10-digit-dialing-for-the-405-area-code-begins-in-oklahoma|work=KFOR|title=New area code number takes effect}}{{cite news|url=https://www.dobson.net/news/oklahomas-new-572-area-code-what-you-need-to-know|work=Dobson.net|title=572 area code, what you need to know}}{{cite news|url=https://www.okcommerce.gov/saturday-marks-the-start-of-mandatory-10-digit-dialing-in-the-405|work=okcommerce.gov|title=Mandatory 10 digit dialing}}
- 580: Western and southern Oklahoma (split from 405 in 1997)
- 539/918: Northeastern Oklahoma including Tulsa (918 created in 1953 as split from 405; 539 added as overlay in 2011)