507 Area Code: Rochester, Minnesota
Area code 507 serves Rochester, Mankato and Winona, Minnesota in the Central time zone, in service since 1954. Consumers have filed 1,990 unwanted-call complaints against 1,734 different 507 numbers, 214 of them with the FTC in the last 30 days. Look up the exact number that called you below.
Area code 507 at a glance
- State
- Minnesota
- Main cities
- Rochester, Mankato, Winona, Faribault, Owatonna, Austin + 215 more
- Counties
- Olmsted County, Blue Earth County, Mower County, Rice County + 29 more
- Local time
- —Central
- In service since
- 1954
- Overlay code
- 924 (2024)
- Local dialing
- 10 digits (area code + number)
- Exchanges
- 228 rate centers, 766 prefixes
Sources: NANPA area code and central office code records (refreshed weekly); cities and counties matched from US Census Bureau and USGS place names.
Most-reported 507 numbers
Ranked by FTC Do Not Call complaints this month, then all-time FTC and FCC complaints. Only numbers with enough complaints for a full report page are listed. Click one for what it was reported for and where.
What calls from 507 numbers are about
624 FTC Do Not Call complaints about 507 numbers since Jul 24. The most common named subject is debt-relief pitches, at 20% of complaints (80% of those were recorded messages). Overall, 69% of callers who answered said the call was a robocall.
FTC complaint subjects
- Other / unspecified24639%
- Debt reduction12520%
- Dropped call / no message6811%
- No subject given6711%
- Impostor (government, business, family)6310%
- Medical & prescriptions152%
- Warranties & protection plans112%
FCC complaints by call type, last 2 years
- Prerecorded Voice4746%
- Live Voice3837%
- Text Message1717%
17% of recent FCC complaints about 507 numbers are about text messages, not calls.
When 507 spam calls come in
31% of complaints that give a call time describe calls between 10am and 1pm. 94% came Monday to Friday, most on Thursdays, the pattern of call-center robocall campaigns that run on business hours. Times are as consumers reported them to the FTC.
By hour of the day
By day of the week
Is it getting worse?
227 FTC complaints about 507 numbers in the last four weeks, down 4% on the four weeks before. FCC complaints about 507 numbers peaked in 2017 (309); the FTC's daily Do Not Call data has carried most of the volume since mid-2026.
FTC complaints per week
FCC complaints per year
Years shown as '15 to '26; the current year is partial.
Who gets these calls
57% of the FTC complaints about 507 numbers came from Minnesota residents, but only 48% from people with 507 numbers themselves. The calls are mostly regional rather than aimed at 507 phones specifically.
Where complainants live
- Minnesota35757%
- Florida376%
- California284%
- Illinois284%
- Georgia163%
What people with 507 numbers report
People whose own number starts with 507 filed 655 FTC complaints since Jul 24. 46% were about calls showing another 507 number. The most common named subject was impostor calls (people pretending to be a government agency, a business or family).
Area codes on the calls they reported
- 507 (same code)29946%
- 612528%
- 651325%
- 866 (toll-free)162%
- 320132%
Likely campaigns using 507 numbers
Groups of numbers that drew the same FTC complaint in the same pattern over the last 60 days. The grouping is statistical and doesn't identify who is calling.
Busiest 507 prefixes this month
FTC complaints in the last 30 days, grouped by the first six digits. When one prefix collects complaints about many different numbers, a campaign is usually cycling through that block. The carrier is who NANPA assigned the prefix to, not who made the calls.
| Prefix | Complaints | Numbers | Carrier | Exchange |
|---|---|---|---|---|
| (507) 816-xxxxcampaign | 15 | 15 | Peerless Network | Rochester |
| (507) 619-xxxx | 6 | 6 | Mcc Telephony of Minnesota, LLC | Fountain |
| (507) 203-xxxx | 6 | 4 | Mcc Telephony of Minnesota, LLC | Brownsdale |
| (507) 609-xxxx | 5 | 5 | Telnyx LLC | Gaylord |
| (507) 906-xxxx | 5 | 5 | Hd Carrier LLC | Rochester |
Carriers operating in 507
NANPA has assigned 766 507 prefixes (NPA-NXX central-office codes) across 228 rate centers: 24% to wireless carriers, 74% to landline and VoIP operators; 72% are pooled blocks shared by several carriers. 6 prefixes were assigned in the last 12 months (newest 2026-10-09). The carrier holding a prefix is who the number was issued through. It says nothing about who is calling, since caller ID is routinely spoofed.
| Carrier | Type | Prefixes | Rate centers | Newest assignment |
|---|---|---|---|---|
| Onvoy (Sinch) | Competitive / VoIP (CLEC) | 101(13%) | 72 | 2023-09-11 |
| Verizon Wireless (Cellco Partnership) | Wireless | 77(10%) | 25 | 2026-10-09 |
| Qwest (CenturyLink / Lumen) | Incumbent landline (ILEC) | 71(9%) | 29 | 2016-03-28 |
| AT&T Mobility (New Cingular Wireless PCS) | Wireless | 55(7%) | 26 | 2023-08-09 |
| Mcc Telephony of Minnesota, LLC | Competitive / VoIP (CLEC) | 52(7%) | 45 | 2023-06-21 |
| Aerial Communications, INC. | Wireless | 44(6%) | 14 | 2022-06-10 |
| Frontier Communications | Incumbent landline (ILEC) | 38(5%) | 36 | — |
| Frontier Communications | Incumbent landline (ILEC) | 35(5%) | 35 | — |
| Bandwidth.com | Competitive / VoIP (CLEC) | 20(3%) | 15 | 2022-01-31 |
| Consolidated Communications of Minnesota CO | Incumbent landline (ILEC) | 20(3%) | 12 | 2015-07-29 |
| CenturyLink (Lumen) | Incumbent landline (ILEC) | 19(2%) | 19 | — |
| Level 3 (Lumen) | Competitive / VoIP (CLEC) | 17(2%) | 15 | 2025-05-22 |
Largest rate centers (exchanges) by prefixes: Rochester (84), Mankato (47), Winona (22), Faribault (21), Owatonna (20), Austin (17), Marshall (15), Albert Lea (14), Northfield (14), New Ulm (11). Source: NANPA Central Office Code Utilized Assignments (public, refreshed weekly).
What to do about calls from 507 numbers
Before you call back
- Debt reduction is the top named complaint here. Don't pay upfront fees for debt relief; the FTC's Telemarketing Sales Rule bans them. Talk to your lender or a nonprofit credit counselor instead. Read about debt-relief robocalls.
- Look up the full number above. A missed call from 507 with no voicemail is usually a robocall; anyone who needs you will leave a message.
- Block repeat callers: iPhone, Android, or your carrier's free filter (Verizon, AT&T, T-Mobile).
Report it in Minnesota
- Unwanted sales calls and robocalls: donotcall.gov (FTC). Scams and fraud: ReportFraud.ftc.gov.
- Spoofing, texts and call-blocking problems: FCC consumer complaints.
- State complaints: Minnesota Attorney General.
- Minnesota formally adopted the FTC's National Do Not Call Registry as its own state list rather than running a separate one, so a single free registration at donotcall.gov covers you. State authorities can still enforce against telemarketers who ignore it, in addition to any federal penalty.
Your FTC and FCC reports are published (without your name or number) in the datasets this page is built from. How to report unwanted calls.
Area code 507: questions answered from the data
Where is area code 507?
Area code 507 serves Rochester, Mankato and Winona, Minnesota, covering Olmsted County, Blue Earth County and Mower County and 30 more counties. It has been in service since 1954.
What time zone is area code 507 in?
Area code 507 is in the Central time zone (UTC−6, or UTC−5 during daylight saving time). The current local time is shown at the top of this page.
Which area codes overlay 507?
924 (in service 2024) serves the same area as 507. New numbers there can be issued with any of these codes, and local calls need all 10 digits. A spoofed call can display any of them.
What are calls from 507 numbers usually about?
Since Jul 24, consumers filed 624 FTC Do Not Call complaints about 507 numbers. The most common named subject was debt-relief pitches: 20% of complaints, 80% of them recorded messages. Across all subjects, 69% of callers who answered the question said the call was a robocall.
When do 507 spam calls happen?
31% of the complaints that give a call time describe calls between 10am and 1pm, and 94% came on weekdays, most often on Thursday. Times are as consumers reported them.
Are calls from 507 numbers really local?
Not necessarily. 57% of the FTC complaints about 507 numbers came from Minnesota residents, but only 48% from people with 507 numbers themselves. The calls are mostly regional rather than aimed at 507 phones specifically.
Are 507 robocalls increasing?
In the four weeks to Oct 15, consumers filed 227 FTC complaints about 507 numbers, 4% fewer than the four weeks before.
How do I report a 507 scam call in Minnesota?
Report unwanted sales calls and robocalls to the FTC at donotcall.gov, and scams to ReportFraud.ftc.gov. The FCC takes complaints at consumercomplaints.fcc.gov. In Minnesota, the Minnesota Attorney General also handles consumer complaints about scam calls. Reports feed the public data this page is built from.
Other Minnesota area codes
Sources: FTC Do Not Call complaints (unverified consumer reports), published every weekday and available here from Jul 24; FCC Consumer Complaint Data, public record, imported nightly; NANPA numbering records. A number appearing here means consumers reported calls that displayed it. Caller ID can be spoofed.