Oklahoma Area Codes
5 active area codes · Oklahoma City · Population around 4,097,758
Oklahoma has 5 active area codes, serving cities like Oklahoma City, Tulsa, and Norman. Of those, 4 are overlays covering ground another code already covers, which is why local calls there use all ten digits. The newest, 572, has been in service since May 24, 2021. Each code below links to its cities, carriers, timezone, and coverage map.
Oklahoma Area Code Map
What area codes does Oklahoma have?
- 405OverlayOklahoma CityCentral Time (CT) · 131 cities · 1,640,082
- 539OverlayTulsaCentral Time (CT) · 324 cities · 1,542,628
- 572OverlayOklahoma CityCentral Time (CT) · 131 cities · 1,640,082
- 580LawtonCentral Time (CT) · 287 cities · 776,643
- 918OverlayTulsaCentral Time (CT) · 324 cities · 1,542,628
More than one of these codes covers 39 of the 77 counties in Oklahoma, and one county is covered by 5 of them. Each card counts the people inside that code's own boundary at the 2020 census. Adding all 5 gives 7,142,063, against the 3,959,353 the same census counts in those counties, because 3,182,710 residents fall inside more than one code.
How many phone prefixes does Oklahoma use?
The area codes in Oklahoma hold 2,500 assigned prefixes between them, listed under 110 distinct carrier names. A prefix is the three digits after the area code, and NANPA assigns each one to a single carrier.
Sources: City populations – U.S. Census Bureau PEP, Vintage 2024 (SUB-IP-EST2024-POP). State populations – the same program, Vintage 2025 (CO-EST2025-ALLDATA). Area-code footprint and county populations – 2020 Census Centers of Population, mapped against NANP area code boundaries. The share of each city inside a code is measured the same way, against Census place boundaries from the Census Bureau's TIGERweb service. Area code assignments – NANPA CO Code data. See our data methodology.
Frequently Asked Questions
How many area codes does Oklahoma have?
Oklahoma has 5 active area codes: 405, 539, 572, 580, 918.
What is the main area code for Oklahoma?
Of the 5 area codes in Oklahoma, 405 is the oldest one still serving Oklahoma City, its largest city. 405 has been in service since 1947.
What are the largest cities in Oklahoma?
The largest cities in Oklahoma include Oklahoma City, Tulsa, Norman, Broken Arrow, Edmond.
What is the total population of Oklahoma?
Oklahoma has an estimated total population of 4,097,758 based on US Census PEP 2024 data.
Do I have to dial ten digits in Oklahoma?
In the parts of Oklahoma covered by an overlay, yes. 4 of the 5 area codes here cover ground another code already covers, and where two codes share an area, local calls need the area code as well as the seven-digit number.
Why does Oklahoma have 5 area codes?
They arrived one at a time rather than all at once: 405 has been in service since 1947. 4 of the 5 are overlays, laid over a code that already covered the same ground instead of splitting its map in two. The most recent is 572, in service since May 24, 2021.
What is the newest area code in Oklahoma?
572, in service since May 24, 2021.
Is my county covered by more than one area code in Oklahoma?
It may be: more than one area code covers 39 of the 77 counties in Oklahoma, and one county there is covered by 5 of them. The table above shows which codes reach each of the largest cities.