5 area codes assigned to Oklahoma · Central Time
2 of Oklahoma's area codes share territory with another. Codes in the same row serve the same places, so either can reach a number there — and ten-digit dialling is required throughout.
The remaining code covers their own area: 580.
Oklahoma went from one area code in 1947 to 5 today. A split carves territory off its parent; an overlay sits on top of it, which is why newer codes need ten-digit dialling.
Dates from the NANPA area code report, 09/19/2026.
Oklahoma spans 7 LATAs — the regions a call is routed within before it becomes long-haul.
405
Oklahoma
Central Time
Overlay · with 572
6,179 blocks · 93 rate centres
539
Oklahoma
Central Time
Overlay · with 918
1,886 blocks · 117 rate centres
572
Oklahoma
Central Time
Overlay · with 405
1,032 blocks · 52 rate centres
580
Oklahoma
Central Time
4,598 blocks · 255 rate centres
918
Oklahoma
Central Time
Overlay · with 539
5,565 blocks · 181 rate centres
Oklahoma has more than one area code in most regions. Enter a city to see which codes serve it, or check a specific number instead.
Oklahoma has had 4 area codes activated as an overlay since 2021, sharing territory with an existing code rather than carving out new geography. Local calls in an overlaid region must be dialed with all ten digits. Earlier overlays are not listed here.
See every North American overlayOklahoma is served by 5 area codes in the North American Numbering Plan (NANP): 405, 539, 572, 580, 918. All Oklahoma numbers are in the Central Time zone. Click any area code above to see the cities and rate centers it covers, formatted tel: link examples, and to search for available phone numbers.