Area code
507
507 is a United States area code. Under the North American Numbering Plan it belongs to Minnesota, which has 8 area codes in total.
Validate a number in 507
Paste a full number and the tool checks it against the numbering plan. It returns the standard formats, the line type the plan assigns and the area code region.
Digits with or without punctuation work. Numbers outside the US are read with the +country code.
Area code 507 at a glance
NANPA lists 763 central office codes (prefixes) in use in area code 507, held by 86 holders across 228 rate centers.
| Fact | Value |
|---|---|
| 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 in area code 507
| 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% |
Who holds the prefixes in 507
Onvoy holds the most prefixes, 101 (13%). 72% of the prefixes are pooled, which means their thousands-blocks can belong to different companies.
| 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. Find which carrier a number is on, or browse the prefix holders.
History of area code 507
- 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.
Area codes nearest to 507
Distance is measured between the centers of the ZIP code places each area code serves, so it is a rough guide.
Overlay codes in the same area
- 924
ZIP codes in area code 507
185 ZIP codes fall in places that have a rate center in this area code.
| Place | ZIP codes |
|---|---|
| Rochester, MN | 6 |
| Mankato, MN | 3 |
| Adams, MN | 1 |
A ZIP code and an area code are unrelated systems. A ZIP code can sit in more than one area code, and an area code spans many ZIP codes.
Complaints on file for 507 numbers
1,364 FCC complaints are on file for 1,161 numbers in 507, most often filed as "Unwanted Calls". These are unverified consumer reports.
| Year of latest complaint | Numbers |
|---|---|
| 2023 | 51 |
| 2024 | 38 |
| 2025 | 53 |
Other area codes in Minnesota
Minnesota is one state with 8 area codes in the NANPA table. 507 is one of them.
Next to 507 in the numbering table
These are the codes just before and after 507 when all are sorted by number. They are neighbours on the list, not necessarily on the map.
What the area code does and does not tell you
A number that starts with 507 was first assigned in Minnesota. That is a fact about where the number began, and it is a useful hint when you check a form entry, for example a billing address in Minnesota next to a 507 phone number.
It does not show where the person is today. A number stays with its owner after a move or a change of provider (number portability), and mobile numbers travel with the handset. The area code also cannot tell you whether the line is active, who the carrier is, or whether the number is mobile or fixed: the plan shares those ranges. Read more about the area code, the numbering plan and line type.
Check numbers in bulk with the API
| Product | Credits | Docs |
|---|---|---|
| Phone Numbering-Plan Validation | 1 credit per valid number | API docs |
| Phone Intelligence (carrier and line status) | 1 credit per check (invalid numbers outside the US and Canada are free) | Product page |
Questions about area code 507
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.
Area code assignments: North American Numbering Plan Administrator NPA report, file dated 10/17/2026, retrieved 2026-10-17. Source file. New codes are assigned several times a year. Prefixes, rate centers, holders, time zone, in-service date and overlays: NANPA central office code report dated 2026-10-17 and NPA report dated 2026-10-18. Complaints: FCC consumer complaints open data, fetched 2026-10-17. ZIP code places: Postal code places and coordinates: GeoNames (geonames.org), licensed CC BY 4.0.