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Get a local business phone number in Janesville, MN

Janesville's area code, prefixes and carriers from NANPA records, and how to put a Janesville number in front of your customers.

Area code
507
Exchanges
4NANPA-assigned
Carriers
3
Population
2,462Census 2024 est.

What area code is Janesville, MN?

With 2,462 residents in the Census 2024 estimate, Janesville sits in Waseca County, Minnesota. All 4 exchanges NANPA lists for its rate center are in area code 507. 507 is part of an overlay with 924, so a new local number in Janesville may carry any of those codes depending on which have numbers available. Janesville is in the Central time zone.

According to NANPA's dialing-plan data, local calls within 507 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Area codes with exchanges in Janesville, MN
Area codeExchanges hereShareIn service sinceOverlay withTime zone
5074100%1954924Central

Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.

Janesville exchanges by carrier

3 carriers hold the 4 exchanges assigned to Janesville's rate center. Onvoy, LLC - MN has the most, with 2. 3 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. A business number in Janesville can come from any of these blocks; once it is yours, porting lets it move between providers.

Carriers holding exchanges in Janesville, MN
Carrier (NANPA operating company)ExchangesShare
Onvoy, LLC - MN250%
Frontier Communications of Minnesota, INC.125%
MCC Telephony of Minnesota, LLC - MN125%

Carrier names are the operating company (OCN) names on NANPA's utilized central office code file dated 10/01/2026. A carrier holding a code may port numbers to other carriers.

Janesville phone prefixes

A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Janesville. The earliest assignment date recorded in the file for these codes is 2010. None were assigned in 2020 or later.

Prefixes assigned in Janesville, MN
Area codePrefixes (NXX)
507231, 234, 565, 682

Source: NANPA utilized central office code file.

Rate centers and local calling in Janesville

What a caller sees as "local" is the area code plus prefix. In Janesville, those come from the JANESVILLE rate center, as recorded by NANPA.

New local numbers are drawn from carrier inventory, so the exact 507 numbers available change over time; porting an existing number is free.

Who does business near Janesville

Janesville is outside any Census metro or micropolitan area, so the figures below are statewide. County Business Patterns counted 154,455 business establishments in Minnesota in 2023, employing 2,803,410 people. The largest sectors by establishment count are health care and social assistance (19,985), retail trade (17,727), and construction (17,568).

Selected industries in Minnesota, 2023
IndustryEstablishmentsEmployeesEmployees per establishment
Full-service restaurants3,87987,23022.5
Limited-service restaurants3,84875,56419.6
Offices of real estate agents and brokers3,2476,3412.0
Insurance agencies and brokerages3,13116,0075.1
Residential remodelers2,9889,1253.1
Landscaping services2,39713,6965.7
Law offices2,05215,6637.6
Dental offices1,88417,6509.4

Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.

A Janesville number on Callata

Callata is a business phone system priced at $99 a month with 5 users included, then $20 per additional user. Callata Office includes up to 3 local business numbers, unlimited inbound calling, 1,500 pooled outbound US and Canada minutes per user each month, a browser softphone that can also ring your cell, voicemail with transcription, call recording with AI summaries, business-hours routing and E911 on every number.

If you already have a number in Janesville, porting it to Callata is free. Texting from a local number requires a one-time carrier registration (10DLC, $49), and the numbers available in any area code depend on carrier inventory when you choose them.

Optional AI agents (receptionist, sales, support or scheduler) can answer calls after hours or when nobody picks up, take messages, text, email and transfer to your team. They are billed from prepaid AI minutes at $0.25 per minute, identify themselves as AI, and may only place outbound calls to people who consented, between 8am and 9pm.

An 18-person team is the benchmark here, the rounded average establishment size in Minnesota. Billed per seat at month-to-month list prices (checked September 28, 2026), RingCentral RingEX Core costs $540.00 a month and Ooma Office Pro $449.10. On Callata the same 18 people cost $359.00 a month, less than either per-seat plan.

Monthly list price for an 18-person team
Provider (plan)Pricing basisPer monthPer year
Callata (Callata Office)$99 incl. 5 users, $20 per extra user$359.00$4,308.00
Quo (Starter)$19.00 per user$342.00$4,104.00
Nextiva (Core)$23.00 per user$414.00$4,968.00
Ooma (Office Pro)$24.95 per user$449.10$5,389.20
Dialpad (Standard)$27.00 per user$486.00$5,832.00
RingCentral (RingEX Core)$30.00 per user$540.00$6,480.00

Competitor prices are each vendor's published month-to-month list price per user for its lowest plan that includes business calling and texting, checked September 28, 2026: Quo Starter $19, Nextiva Core $23, Ooma Office Pro $24.95 (Essentials excludes texting; one-time $29.95 activation not included), Dialpad Standard $27, RingCentral RingEX Core $30 ($20 billed annually). Prices exclude taxes and fees and may change; annual contracts lower some competitors' prices.

Frequently asked questions

What area code is Janesville, MN?

507. All exchanges NANPA lists for Janesville are in 507.

How many phone companies have exchanges in Janesville?

3, holding 4 exchanges between them, according to NANPA's 10/01/2026 file.

Can I keep my existing Janesville business number?

Yes. Porting an existing number to Callata is free. Texting from it starts after carrier registration (10DLC), a one-time $49 fee.

How much is a business phone line in Janesville?

Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 18 users come to $359.00 a month. For comparison, 18 users on RingCentral RingEX Core list at $540.00 a month (checked September 28, 2026).