Area codes 918 and 539 are telephone overlay area codes in the North American Numbering Plan for the northeast of Oklahoma, including the city of Tulsa. The numbering plan area also comprises Bartlesville, Broken Arrow, Claremore, Gore, Jenks, McAlester, Muskogee, Okmulgee, Pryor, Sapulpa, Tahlequah.

Area code 918 was created in 1953 in an area code split of 405. Area code 539 was added to the numbering plan area on April 1, 2011. Mandatory ten-digit dialing became effective on March 5, 2011. It is the first overlay in Oklahoma.

Service area Below is a full list of all towns and cities in the numbering plan area.

Adair Afton Agra Albion Alderson Arkoma Avant Barnsdall Bartlesville Bearden Beggs Big Cabin Bixby Boatman Bokoshe Boley Boynton Braggs Bristow Broken Arrow Bugtussle Burbank Bushyhead Cameron Canadian Cardin Carlton Landing Carter Nine Castle Catoosa Checotah Chelsea Chouteau Claremore Clayton Cleveland Colcord Collinsville Commerce Copan Council Hill Coweta Crowder Cushing Davenport Delaware Depew Dewar Dewey Disney Drumright Dustin Eufaula Fairfax Fairland Fanshawe Foraker Fort Gibson Foyil Gans Glenpool Gore Grayson Grove Haileyville Hallett Hanna Hartshorne Haskell Heavener Henryetta Hitchita Hoffman Hominy Howe Hulbert Indianola Inola Jay Jenks Jennings Kansas Kellyville Kendrick Kenwood Keota Kiefer Kinta Kiowa Krebs Langley Le Flore Lenapah Lequire Locust Grove Mannford Marmec Marble City Mazie McAlester McCurtain Miami Moffett Morris Mounds Muldrow Muse Muskogee New Tulsa North Miami Nowata Oakhurst Oaks Ochelata Oilton Okay Okemah Okmulgee Oktaha Oologah Osage Owasso Page Panama Park Hill Parkland Pawhuska Pawnee Peoria Pettit Picher Pittsburg Pocola Porter Porum Poteau Prue Pryor Quapaw Quinton Ralston Ramona Red Oak Redbird Rentiesville Ripley Roland Salina Sallisaw Sand Springs Sapulpa Savanna Schulter Shady Point Shamrock Shidler Skiatook Slick South Coffeyville Sparks Spavinaw Sperry Spiro Stidham Stigler Stilwell Strang Stroud Stuart Taft Tahlequah Talala Tamaha Terlton Texanna Ti Tryon Tullahassee Tulsa Turley Tussy Twin Oaks Vera Verdigris Vian Vinita Wagoner Wainwright Wann Warner Watts Webbers Falls Welch Welling Westport Westville Whitefield Wilburton Wister Wyandotte Wynona Yale

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