South region · Central Time
Oklahoma Area Codes
All 5 area codes serving Oklahoma, the cities each one covers, and which are overlays. Oklahoma is served by 5 area codes in the Central Time zone.
Last updated October 3, 2026
Full list
Every Oklahoma area code
Oklahoma is served by 5 area codes in the Central Time zone. 2 of these are overlay codes layered over busy metros; the rest are geographic codes.
| Code | Area served | Type | In service |
|---|---|---|---|
| 405 | Central Oklahoma, including Oklahoma City, Norman, Edmond and Stillwater | Geographic | Since 1947 |
| 539 | Northeastern Oklahoma, including Tulsa, Broken Arrow and Muskogee | Overlay | Since 2011 |
| 572 | Central Oklahoma, including Oklahoma City, Norman, Edmond and Stillwater | Overlay | Since 2021 |
| 580 | Western, southern and northern Oklahoma, including Lawton, Enid and Ardmore | Geographic | Since 1997 |
| 918 | Northeastern Oklahoma, including Tulsa, Broken Arrow and Muskogee | Geographic | Since 1953 |
Area codes and dialing in Oklahoma
Oklahoma's 5 area codes mix older geographic codes with newer overlays. The busiest metros — around Oklahoma City, Tulsa, Lawton — carry the most numbers and rely on overlays, which is why 10-digit dialing is required there. Quieter parts of the state may still use a single code. The oldest code in Oklahoma is 405 (Oklahoma City), one of the original 1947 area codes.
Whenever a Oklahoma region runs low on numbers, a new overlay is added on top rather than splitting the map, so existing customers keep their numbers. See 10-digit dialing for what that means in practice, or the newest area codes for upcoming changes.
Oklahoma city area code pages
Look up the area codes for a specific Oklahoma city: Oklahoma City · Tulsa.
Browse Oklahoma another way
Explore by South region, by time zone, or jump to the city index. You can also see the complete numeric list of every US area code.
Quick answers
Oklahoma area code FAQ
How many area codes does Oklahoma have?
Oklahoma currently has 5 area codes: 405, 539, 572, 580, 918.
What is the main area code for Oklahoma?
Oklahoma has no single main code. Its original 1947 area code was 405; today the main cities are served by 405 (Oklahoma City), 918 (Tulsa), 580 (Lawton), 539 (Tulsa), 572 (Oklahoma City).
Does Oklahoma require 10-digit dialing?
Yes, in its overlay areas you must dial all 10 digits, even for local calls. Dialing all 10 digits always works, so it is the safe habit.