--- title: "Area code 235: Missouri, United States" url: "https://lookvalid.com/area-code/235.md" canonical_url: "https://lookvalid.com/area-code/235" last_updated: "2026-10-23" type: "reference" summary: "Area code 235 serves Missouri, United States. Number formats, numbering rules, a live phone validator and the other codes in Missouri." --- # Area code 235: Missouri, United States Area code 235 serves Missouri, United States. Number formats, numbering rules, a live phone validator and the other codes in Missouri. NANPA lists 33 central office codes (prefixes) in use in area code 235, held by 12 holders across 20 rate centers. New Cingular Wireless PCS holds the most prefixes, 10 (30%). 100% of the prefixes are pooled, which means their thousands-blocks can belong to different companies. The FCC unwanted-call data has 78 complaints on file for 42 numbers in 235, most often filed as "Unwanted Calls". These are consumer reports, not findings. ## Facts - In service since: 2024-03-24 - Time zone: Central (C) - Assigned overlays: 573 (1996-01-07) - Prefixes in use: 33 - Pooled prefixes: 33 (100%) - Rate centers: 20 - Companies holding prefixes: 12 - Assignment dates on file: 2024-09-12 to 2026-06-25 (33 prefixes) - ZIP codes in its places: 24 ## Rate centers | Rate center | Prefixes | Share | | --- | --- | --- | | BIRCH TREE | 8 | 24% | | COLUMBIA | 4 | 12% | | JEFFERSNCY | 3 | 9% | | CAPEGIRARD | 2 | 6% | | ARGYLE | 1 | 3% | | CAMDENTON | 1 | 3% | | CAMPBELL | 1 | 3% | | CARDWELL | 1 | 3% | | 12 other rate centers | 12 | 36% | ## Carriers | Holder | Prefixes | Share | | --- | --- | --- | | New Cingular Wireless PCS | 10 | 30% | | Onvoy | 10 | 30% | | HD Carrier | 2 | 6% | | Peerless Network Of Missouri | 2 | 6% | | T-Mobile USA | 2 | 6% | | AT&T Enterprises | 1 | 3% | | 6 other carriers | 6 | 18% | 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 - 1996-01-07: Area code 573, named as the parent of 235 in the NANPA report, was in service. - 2024-03-24: Area code 235 went into service. ## Nearest area codes The area codes closest to 235, measured between the centers of the ZIP code places they serve, are 636 (about 60 miles), 314 (about 82 miles), 557 (about 82 miles), 417 (about 122 miles) and 730 (about 132 miles). ## ZIP codes 24 ZIP codes fall in places that have a rate center in this area code. The places with the most are Columbia, MO (10 ZIP codes), Argyle, MO (1 ZIP code) and Birch Tree, MO (1 ZIP code). 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 78 complaints for 42 numbers. Numbers whose latest complaint falls in each year: - 2023: 1 - 2024: 0 - 2025: 5 ## Questions ### Where is area code 235? NANPA assigns area code 235 to Missouri, United States. ### In which state does area code 235 sit? Missouri. 235 is one of 9 area codes the NANPA table assigns to the state. ### Which places does area code 235 cover? The places with the most ZIP codes among the rate centers in 235 are Columbia, MO, Argyle, MO and Birch Tree, MO. The rate center list on this page shows all of them. ### Who owns area code 235? NANPA assigns area codes. Within 235, New Cingular Wireless PCS holds the most prefixes, 10 prefixes or 30%. ### Which time zone does 235 use? The NANPA NPA report lists the time zone for 235 as Central (C). ### What year did 235 enter service? The NANPA NPA report gives an in-service date of 2024-03-24, so 235 has been in use since 2024. ### Does area code 235 have an overlay? Yes. 573 (in service 1996-01-07) shares the same area with 235, so numbers from all of them are local to each other. ### Which area codes are nearest to 235? The area codes closest to 235, measured between the centers of the ZIP code places they serve, are 636 (about 60 miles), 314 (about 82 miles), 557 (about 82 miles), 417 (about 122 miles) and 730 (about 132 miles). ### How many prefixes does area code 235 have? NANPA's report dated 2026-10-17 lists 33 prefixes in service in 235, spread over 20 rate centers and 12 holders. ### Are there complaints about 235 numbers? The FCC data on file has 78 complaints for 42 numbers in 235. 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).