918 Area Code — Tulsa, OK
Area code 918 serves Tulsa and 3 other cities in Oklahoma. Local time follows America/Chicago. It overlays with 539, so 10-digit dialling is required.
- State
- Oklahoma
- Primary city
- Tulsa
- Timezone
- America/Chicago
- In service since
- 1953
- Type
- Geographic
- Overlay codes
- 539
Cities Served by 918
The 918 area code covers 4 cities and communities in Oklahoma.
- Tulsa
- Broken Arrow
- Owasso
- Muskogee
About Area Code 918
Area code 918 is a North American Numbering Plan (NANP) area code that has been in service since 1953. It is administered by NANPA on behalf of the FCC and serves the Oklahoma region anchored on Tulsa.
918 now shares its territory with an overlay code (539). 10-digit dialling is required for local calls within this region because the same 7-digit number can be assigned under either code.
Mobile numbers in 918 are portable: a person who moved away from Tulsa may still carry a 918 mobile number on their device. If you receive an unexpected call from a 918 number, run it through the reverse lookup tool above for the most accurate, free identification.
If you live or do business in Oklahoma, you may also interact with neighbouring or overlay codes (539). See the related codes section below to explore the rest of Oklahoma.
Other Oklahoma Area Codes
Continue exploring the Oklahoma numbering plan.
918 Area Code FAQ
Where is area code 918?
Area code 918 is located in Oklahoma, primarily serving Tulsa and surrounding cities including Broken Arrow, Owasso, Muskogee. The region operates on CT (America/Chicago) time.
What state is 918 area code?
918 is a Oklahoma area code. It was put into service in 1953 and shares its geographic footprint with overlay code 539.
Is 918 a scam area code?
918 is a legitimate North American area code allocated by NANPA to Oklahoma. Like any geographic area code, scammers sometimes spoof 918 numbers — judge each call by content (urgent demands, unfamiliar transfers) rather than the area code alone. Run the specific number through our reverse lookup if you're unsure.
What time zone does 918 use?
Area code 918 operates on CT (America/Chicago). Numbers in this area code follow standard Oklahoma time-zone rules including any daylight-saving transitions for that region.
Can I look up a specific 918 phone number?
Yes. Use the reverse lookup widget above to enter a full 918 number. NumLocation returns the line type (mobile, landline, VoIP), carrier, rate-center city, and any public listings tied to the number — free.
What's the difference between 918 and 539?
918 and 539 cover the same Oklahoma geographic area as overlay codes. Calls between them are local, but you must dial all 10 digits. New phone numbers in this region are assigned from either pool depending on what's available with the carrier at signup.