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US area code · Oklahoma

918 area code

Where the 918 area code is, its overlay and how to dial a +1 918 number from anywhere.

CoversBartlesville, OklahomaTime zoneCentral (CT)TypeOverlay
Quick answer

The 918 area code is in Bartlesville, Oklahoma, United States (Central (CT)). To call from abroad: +1 918 555-0123. It is an overlay, so all 10 digits are dialled.

StateOklahoma
Main areaBartlesville
Time zoneCentral (CT)
TypeOverlay
10-digit dialingRequired
In service since01-Jan-1953

The 918 area code is a geographic North American Numbering Plan (NANP) code covering Bartlesville, Oklahoma. It has been in service since 01-Jan-1953 and sits in the Central (CT) time zone.

Overlay 918 shares its region

Several area codes cover the same geographic area, so two neighbours can have different codes. Because of the overlay, you must dial all 10 digits (area code + number) even for local calls.

918539

How to dial a 918 number

From abroad+1 918 555-0123
Within the US / Canada1 918 555-0123
Locally (same area)918 555-0123

Cities in the 918 area code

A 918 number is usually in one of these places in Oklahoma — 4 counties.

Bartlesville WashingtonBroken Arrow Tulsa;WagonerMuskogee MuskogeeTulsa Creek;Tulsa

Other Oklahoma area codes

405539572580

Frequently asked questions

Where is the 918 area code?

The 918 area code is in Bartlesville, Oklahoma, United States (Central (CT)).

Is 918 an overlay area code?

Yes. 918 overlays the same region as 539, so callers dial all 10 digits.

Do I have to dial 10 digits for 918?

Yes — dial the area code plus the seven-digit number.

How do I call a 918 number from another country?

Dial your exit code (or +), then 1, then 918, then the number: +1 918 555-0123.

Source: NANPA numbering plan. An area code covers a region, not a precise address — a 918 number does not pinpoint a street or ZIP code.

Number holders in area code 918

Each prefix (the three digits after the area code) is assigned by NANPA to one telephone company. 799 prefixes are in use in 918, shared by 60 companies. The largest holders:

CompanyPrefixesShare
Southwestern Bell23630%
New Cingular Wireless PCS, LLC9312%
Cellco Partnership Dba Verizon Wireless506%
T-Mobile USA, Inc.496%
Valor Telecom Tx.LP-Ok Dba Windstream Comm Sw365%
United States Cellular324%

Source: NANPA central office code assignments. A number keeps its original prefix when it is ported to another carrier.

Complaints about 918 numbers

Reports to the FTC, last 30 days
980
Recorded messages or robocalls
82%
Rank among area codes
#45 of 670
Most reported subjects
Calls pretending to be government, businesses, or family and friends (500)
Other (211)
Reducing your debt (credit cards, mortgage, student loans) (111)

Period Aug 26 – Sep 24, 2026. These are the numbers shown on the caller ID of the reported calls; many are spoofed and do not belong to the real caller.

Source: US Federal Trade Commission, Do Not Call reported calls data (daily files).

All US area codes United States +1 Map of area code 918 — cities & rate centres

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