--- title: "Area code 572: Oklahoma, United States" url: "https://lookvalid.com/area-code/572.md" canonical_url: "https://lookvalid.com/area-code/572" last_updated: "2026-10-23" type: "reference" summary: "Area code 572 serves Oklahoma, United States. Number formats, numbering rules, a live phone validator and the other codes in Oklahoma." --- # Area code 572: Oklahoma, United States Area code 572 serves Oklahoma, United States. Number formats, numbering rules, a live phone validator and the other codes in Oklahoma. NANPA lists 116 central office codes (prefixes) in use in area code 572, held by 27 holders across 52 rate centers. Onvoy holds the most prefixes, 20 (17%). 100% of the prefixes are pooled, which means their thousands-blocks can belong to different companies. The FCC unwanted-call data has 86 complaints on file for 82 numbers in 572, most often filed as "Unwanted Calls". These are consumer reports, not findings. ## Facts - In service since: 2021-05-24 - Time zone: Central (C) - Assigned overlays: 405 (1947-01-01) - Prefixes in use: 116 - Pooled prefixes: 116 (100%) - Rate centers: 52 - Companies holding prefixes: 27 - Assignment dates on file: 2021-03-26 to 2026-05-21 (115 prefixes) - ZIP codes in its places: 66 ## Rate centers | Rate center | Prefixes | Share | | --- | --- | --- | | OKLA CITY | 41 | 35% | | EDMOND | 6 | 5% | | SHAWNEE | 4 | 3% | | BETHANY | 3 | 3% | | BRITTON | 3 | 3% | | CHANDLER | 3 | 3% | | CHICKASHA | 3 | 3% | | NORMAN | 3 | 3% | | 44 other rate centers | 50 | 43% | ## Carriers | Holder | Prefixes | Share | | --- | --- | --- | | Onvoy | 20 | 17% | | United States Cellular | 19 | 16% | | Fractel | 15 | 13% | | Ton80 Communications | 9 | 8% | | T-Mobile USA | 8 | 7% | | New Cingular Wireless PCS | 7 | 6% | | 21 other carriers | 38 | 33% | 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 - 1947-01-01: Area code 405, named as the parent of 572 in the NANPA report, was in service. - 2021-05-24: Area code 572 went into service. ## Nearest area codes The area codes closest to 572, measured between the centers of the ZIP code places they serve, are 580 (about 45 miles), 539 (about 99 miles), 918 (about 101 miles), 940 (about 147 miles) and 316 (about 158 miles). ## ZIP codes 66 ZIP codes fall in places that have a rate center in this area code. The places with the most are Edmond, OK (6 ZIP codes), Norman, OK (6 ZIP codes) and Stillwater, OK (5 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 86 complaints for 82 numbers. Numbers whose latest complaint falls in each year: - 2023: 2 - 2024: 22 - 2025: 18 ## Questions ### Where is area code 572? NANPA assigns area code 572 to Oklahoma, United States. ### In which state does area code 572 sit? Oklahoma. 572 is one of 5 area codes the NANPA table assigns to the state. ### Which places does area code 572 cover? The places with the most ZIP codes among the rate centers in 572 are Edmond, OK, Norman, OK and Stillwater, OK. The rate center list on this page shows all of them. ### Who owns area code 572? NANPA assigns area codes. Within 572, Onvoy holds the most prefixes, 20 prefixes or 17%. ### Which time zone does 572 use? The NANPA NPA report lists the time zone for 572 as Central (C). ### What year did 572 enter service? The NANPA NPA report gives an in-service date of 2021-05-24, so 572 has been in use since 2021. ### Does area code 572 have an overlay? Yes. 405 (in service 1947-01-01) shares the same area with 572, so numbers from all of them are local to each other. ### Which area codes are nearest to 572? The area codes closest to 572, measured between the centers of the ZIP code places they serve, are 580 (about 45 miles), 539 (about 99 miles), 918 (about 101 miles), 940 (about 147 miles) and 316 (about 158 miles). ### How many prefixes does area code 572 have? NANPA's report dated 2026-10-17 lists 116 prefixes in service in 572, spread over 52 rate centers and 27 holders. ### Are there complaints about 572 numbers? The FCC data on file has 86 complaints for 82 numbers in 572. 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).