Tulsa County · Oklahoma
Tulsa, OK area codes and time zone
Quick answer
Tulsa is served by area codes 539, 918, keeps CST time (GMT-6), and sits in county FIPS 40143.
- Area codes
- 539 · 918Within 25 miles of the city centre
- Time zone
- CSTAmerica/Chicago
- UTC offset
- GMT-6CDT in summer (UTCGMT-5)
- County FIPS
- 40143Tulsa County
Dialling from and to Tulsa
What this means when you pick up the phone.
Because more than one code covers this area, ten-digit dialling applies for local calls: area code plus number, every time. From abroad, dial +1 then the ten digits.
How Tulsa came to have several area codes
Why one city can carry several codes.
Area codes are assigned to geography, then exhausted as demand grows. Tulsa — population about 412k — is covered by codes 539, 918, drawn from within 25 miles of the city centre. Because these 2 codes serve the same footprint, they are overlays: the number pool ran low and a new code was layered on top rather than splitting the city apart. All ten digits are required for every local call.
More Tulsa data
Other Tulsa datasets on this site.
- Tulsa population and income
- Tulsa sales tax rate
- Tulsa property tax
- Tulsa cost of living
- Tulsa home values and rent
- Tulsa crime rates
- Tulsa public schools
- Tulsa weather normals
- Tulsa commute times
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