Oklahoma Area Codes
| State: | Oklahoma (OK) |
| Area Codes: | 5 |
| Timezone: | Central (CDT) |
| Current Time: | 1:10 AM |
About Oklahoma Area Codes
Oklahoma (OK) uses 5 telephone area codes to serve its residents and businesses. With an estimated population of 3,727,497, Oklahoma is one of the smaller states in the North American Numbering Plan (NANP). The state is primarily in the Central Time Zone (CDT). The current local time in Oklahoma is 1:10 AM.
The largest cities in Oklahoma include Oklahoma City (pop. 972,943), Tulsa (pop. 671,033), Norman (pop. 124,880), Broken Arrow (pop. 110,198) and Edmond (pop. 94,054) . Oklahoma has 77 counties spread across its territory. Each area code in OK covers a geographic region of the state, with some areas using overlay codes that share the same geographic territory as an existing area code.
When calling a Oklahoma phone number from outside the area code, you must dial the full 10-digit number: the 3-digit area code followed by the 7-digit local number. Many parts of Oklahoma now require 10-digit dialing even for local calls due to overlay area codes and the nationwide 988 Suicide & Crisis Lifeline implementation.
All Oklahoma Area Codes
The table below lists every active area code in Oklahoma, along with the major city served and other cities covered by each code.
| Area Code | Major City | Other Cities |
|---|---|---|
| 405 | Oklahoma City | Tulsa, Norman, Edmond, Stillwater, Enid, Shawnee, Yukon, Mustang and more |
| 539 | Tulsa | Wagoner, Stroud, Haskell, Inola, Morris, Fairfax, Barnsdall, Kellyville and more |
| 572 | Oklahoma City | Enid |
| 580 | Oklahoma City | Tulsa, Lawton, Stillwater, Enid, Ardmore, Ponca City, Duncan, Durant and more |
| 918 | Tulsa | Broken Arrow, Muskogee, Bartlesville, Owasso, Bixby, Claremore, Jenks, Sapulpa and more |
Largest Cities in Oklahoma
These are the largest cities in Oklahoma by population, along with their primary area codes and counties.
| City | Population | County |
|---|---|---|
| Oklahoma City | 972,943 | Oklahoma County |
| Tulsa | 671,033 | Tulsa County |
| Norman | 124,880 | Cleveland County |
| Broken Arrow | 110,198 | Tulsa County |
| Edmond | 94,054 | Oklahoma County |
| Lawton | 93,025 | Comanche County |
| Moore | 62,055 | Cleveland County |
| Midwest City | 57,407 | Oklahoma County |
| Stillwater | 50,299 | Payne County |
| Enid | 49,688 | Garfield County |
Frequently Asked Questions
Oklahoma is primarily in the Central Time Zone (CDT).
The current local time is 1:10 AM.
The area code covering the most cities in Oklahoma is 580, which serves Oklahoma City and 216+ other communities.
Yes, most areas in Oklahoma now require 10-digit dialing (area code + 7-digit number) for all local calls. This requirement was implemented across the United States starting in October 2021 to support the 988 Suicide & Crisis Lifeline. Even if you are calling within the same area code, you need to dial all 10 digits.
To call a Oklahoma number from within the United States, dial the area code followed by the 7-digit phone number (e.g., 405-XXX-XXXX). From outside the US, dial your country's exit code, then 1 (the US country code), then the full 10-digit number.
Oklahoma has 77 counties.
The state's total estimated population is 3,727,497, spread across these counties and served by 5 area codes.
Oklahoma City is served by area code
405.
Oklahoma has 5 area codes in total — see the complete list above.
