--- title: "Area code 507: Minnesota, United States" url: "https://lookvalid.com/area-code/507.md" canonical_url: "https://lookvalid.com/area-code/507" last_updated: "2026-10-23" type: "reference" summary: "Area code 507 serves Minnesota, United States. Number formats, numbering rules, a live phone validator and the other codes in Minnesota." --- # Area code 507: Minnesota, United States Area code 507 serves Minnesota, United States. Number formats, numbering rules, a live phone validator and the other codes in Minnesota. NANPA lists 763 central office codes (prefixes) in use in area code 507, held by 86 holders across 228 rate centers. Onvoy holds the most prefixes, 101 (13%). 72% of the prefixes are pooled, which means their thousands-blocks can belong to different companies. The FCC unwanted-call data has 1,364 complaints on file for 1,161 numbers in 507, most often filed as "Unwanted Calls". These are consumer reports, not findings. ## Facts - In service since: 1954-01-01 - Time zone: Central (C) - Assigned overlays: 924 (2024-08-30) - Prefixes in use: 763 - Pooled prefixes: 550 (72%) - Rate centers: 228 - Companies holding prefixes: 86 - Assignment dates on file: 2001-01-04 to 2026-06-03 (337 prefixes) - ZIP codes in its places: 185 ## Rate centers | Rate center | Prefixes | Share | | --- | --- | --- | | ROCHESTER | 82 | 11% | | MANKATO | 46 | 6% | | WINONA | 22 | 3% | | FARIBAULT | 21 | 3% | | OWATONNA | 20 | 3% | | AUSTIN | 17 | 2% | | MARSHALL | 15 | 2% | | ALBERT LEA | 14 | 2% | | 220 other rate centers | 526 | 69% | ## Carriers | Holder | Prefixes | Share | | --- | --- | --- | | Onvoy | 101 | 13% | | Verizon Wireless | 76 | 10% | | Qwest | 71 | 9% | | New Cingular Wireless PCS | 55 | 7% | | MCC Telephony Of Minnesota | 52 | 7% | | Aerial Communications | 44 | 6% | | 80 other carriers | 364 | 48% | 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 - 1954-01-01: Area code 507 went into service. - 2024-08-30: Area code 924 went into service as an overlay in the same area as 507. ## Nearest area codes The area codes closest to 507, measured between the centers of the ZIP code places they serve, are 952 (about 53 miles), 651 (about 90 miles), 763 (about 102 miles), 320 (about 104 miles) and 515 (about 136 miles). ## ZIP codes 185 ZIP codes fall in places that have a rate center in this area code. The places with the most are Rochester, MN (6 ZIP codes), Mankato, MN (3 ZIP codes) and Adams, MN (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 1,364 complaints for 1,161 numbers. Numbers whose latest complaint falls in each year: - 2023: 51 - 2024: 38 - 2025: 53 ## Questions ### Where is area code 507? NANPA assigns area code 507 to Minnesota, United States. ### In which state does area code 507 sit? Minnesota. 507 is one of 8 area codes the NANPA table assigns to the state. ### Which places does area code 507 cover? The places with the most ZIP codes among the rate centers in 507 are Rochester, MN, Mankato, MN and Adams, MN. The rate center list on this page shows all of them. ### Who owns area code 507? NANPA assigns area codes. Within 507, Onvoy holds the most prefixes, 101 prefixes or 13%. ### Which time zone does 507 use? The NANPA NPA report lists the time zone for 507 as Central (C). ### What year did 507 enter service? The NANPA NPA report gives an in-service date of 1954-01-01, so 507 has been in use since 1954. ### Does area code 507 have an overlay? Yes. 924 (in service 2024-08-30) shares the same area with 507, so numbers from all of them are local to each other. ### Which area codes are nearest to 507? The area codes closest to 507, measured between the centers of the ZIP code places they serve, are 952 (about 53 miles), 651 (about 90 miles), 763 (about 102 miles), 320 (about 104 miles) and 515 (about 136 miles). ### How many prefixes does area code 507 have? NANPA's report dated 2026-10-17 lists 763 prefixes in service in 507, spread over 228 rate centers and 86 holders. ### Are there complaints about 507 numbers? The FCC data on file has 1,364 complaints for 1,161 numbers in 507. 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).