Area codes in Tulsa, Oklahoma
Tulsa, Oklahoma uses 2 area codes — 918 and 539. The main Tulsa area code is 918.
Area codes serving Tulsa
Phone numbers in Tulsa are written as ten digits — for example (918) 555-0190 — and fall in the Central Time zone.
How Tulsa came to have 2 area codes
The original Tulsa area code is 918, in service since 1953. As the area ran low on available numbers, an overlay code was added over the same region for new phone lines: 539 (2011). Existing numbers kept their original code — an overlay never forces anyone to change their number — which is why Tulsa now uses all 2 codes and every local call is dialed with ten digits.
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Nearby cities
- Stillwater area codes
- Edmond area codes
- Oklahoma City area codes
- Norman area codes
- Fort Smith area codes
- Joplin area codes
- Wichita area codes
- Lawton area codes
Frequently asked questions
What is the area code for Tulsa?
The main area code for Tulsa, Oklahoma is 918. Tulsa is now served by 2 area codes in total: 918, 539.
How many area codes does Tulsa have?
Tulsa has 2 area codes: 918, 539.
Why does Tulsa have more than one area code?
As Tulsa used up the numbers available in its original area code (918, in service since 1953), additional "overlay" codes were added over the same area so new phone numbers could keep being assigned.
How do you dial a Tulsa number?
Dial all 10 digits — the area code (918 or 539) followed by the 7-digit local number. From abroad, dial +1, then the area code and number.
Sourced from the official NANPA (North American Numbering Plan Administrator) numbering database, current as of August 2, 2026. Refreshed monthly.