--- title: "Area code 539: Oklahoma, United States" url: "https://lookvalid.com/area-code/539.md" canonical_url: "https://lookvalid.com/area-code/539" last_updated: "2026-10-23" type: "reference" summary: "Area code 539 serves Oklahoma, United States. Number formats, numbering rules, a live phone validator and the other codes in Oklahoma." --- # Area code 539: Oklahoma, United States Area code 539 serves Oklahoma, United States. Number formats, numbering rules, a live phone validator and the other codes in Oklahoma. NANPA lists 237 central office codes (prefixes) in use in area code 539, held by 38 holders across 116 rate centers. Onvoy holds the most prefixes, 34 (14%). 98% of the prefixes are pooled, which means their thousands-blocks can belong to different companies. The FCC unwanted-call data has 348 complaints on file for 273 numbers in 539, most often filed as "Unwanted Calls". These are consumer reports, not findings. ## Facts - In service since: 2011-04-01 - Time zone: Central (C) - Assigned overlays: 918 (1953-01-01) - Prefixes in use: 237 - Pooled prefixes: 232 (98%) - Rate centers: 116 - Companies holding prefixes: 38 - Assignment dates on file: 2011-10-04 to 2026-06-09 (223 prefixes) - ZIP codes in its places: 155 ## Rate centers | Rate center | Prefixes | Share | | --- | --- | --- | | TULSA | 59 | 25% | | BROKENARRW | 8 | 3% | | BARTLESVL | 5 | 2% | | TAHLEQUAH | 5 | 2% | | BRISTOW | 4 | 2% | | MUSKOGEE | 4 | 2% | | OKMULGEE | 4 | 2% | | PRYOR | 4 | 2% | | 108 other rate centers | 144 | 61% | ## Carriers | Holder | Prefixes | Share | | --- | --- | --- | | Onvoy | 34 | 14% | | Level 3 Communications | 27 | 11% | | Fractel | 22 | 9% | | United States Cellular | 21 | 9% | | Bandwidth.com CLEC | 18 | 8% | | T-Mobile USA | 17 | 7% | | 32 other carriers | 98 | 41% | A prefix holder is the company a code was assigned to, not necessarily a number's current carrier, because numbers can be ported to another company. ## History - 1953-01-01: Area code 918, named as the parent of 539 in the NANPA report, was in service. - 2011-04-01: Area code 539 went into service. ## Nearest area codes The area codes closest to 539, measured between the centers of the ZIP code places they serve, are 479 (about 99 miles), 572 (about 99 miles), 405 (about 104 miles), 580 (about 143 miles) and 417 (about 147 miles). ## ZIP codes 155 ZIP codes fall in places that have a rate center in this area code. The places with the most are Tulsa, OK (52 ZIP codes), Claremore, OK (3 ZIP codes) and Muskogee, OK (3 ZIP codes). A ZIP code and an area code are unrelated systems, so a ZIP code can sit in more than one area code and an area code spans many ZIP codes. ## Complaints on file 348 complaints for 273 numbers. Numbers whose latest complaint falls in each year: - 2023: 36 - 2024: 43 - 2025: 22 ## Questions ### Where is area code 539? NANPA assigns area code 539 to Oklahoma, United States. ### In which state does area code 539 sit? Oklahoma. 539 is one of 5 area codes the NANPA table assigns to the state. ### Which places does area code 539 cover? The places with the most ZIP codes among the rate centers in 539 are Tulsa, OK, Claremore, OK and Muskogee, OK. The rate center list on this page shows all of them. ### Who owns area code 539? NANPA assigns area codes. Within 539, Onvoy holds the most prefixes, 34 prefixes or 14%. ### Which time zone does 539 use? The NANPA NPA report lists the time zone for 539 as Central (C). ### What year did 539 enter service? The NANPA NPA report gives an in-service date of 2011-04-01, so 539 has been in use since 2011. ### Does area code 539 have an overlay? Yes. 918 (in service 1953-01-01) shares the same area with 539, so numbers from all of them are local to each other. ### Which area codes are nearest to 539? The area codes closest to 539, measured between the centers of the ZIP code places they serve, are 479 (about 99 miles), 572 (about 99 miles), 405 (about 104 miles), 580 (about 143 miles) and 417 (about 147 miles). ### How many prefixes does area code 539 have? NANPA's report dated 2026-10-17 lists 237 prefixes in service in 539, spread over 116 rate centers and 38 holders. ### Are there complaints about 539 numbers? The FCC data on file has 348 complaints for 273 numbers in 539. They are unverified consumer reports. A number with no complaints on file is not proven safe. Sources: NANPA central office code report dated 2026-10-17; NANPA NPA report dated 2026-10-18; FCC unwanted-call complaints, data fetched 2026-10-17; ZIP code places from GeoNames (CC BY 4.0).