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Get a local business phone number in Sun Prairie, WI

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

Area code
608
Exchanges
7NANPA-assigned
Carriers
4
Population
39,253Census 2024 est.

Area codes in Sun Prairie

With 39,253 residents in the Census 2024 estimate, Sun Prairie sits in Dane County, Wisconsin. All 7 exchanges NANPA lists for its rate center are in area code 608. 608 is part of an overlay with 353, so a new local number in Sun Prairie may carry any of those codes depending on which have numbers available. Sun Prairie is in the Central time zone.

According to NANPA's dialing-plan data, local calls within 608 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Area codes with exchanges in Sun Prairie, WI
Area codeExchanges hereShareIn service sinceOverlay withTime zone
6087100%1955353Central

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

Phone carriers in Sun Prairie

4 carriers hold the 7 exchanges assigned to Sun Prairie's rate center. Frontier North INC. - Wi has the most, with 3. 4 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. Holding a code means NANPA assigned that block of numbers to the carrier for this rate center; individual numbers may since have been ported elsewhere.

Carriers holding exchanges in Sun Prairie, WI
Carrier (NANPA operating company)ExchangesShare
Frontier North INC. - Wi343%
Onvoy, LLC - Wi229%
Charter Ip Enabled Services, LLC114%
Level 3 Communications, LLC - Wi114%

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.

Local prefixes for Sun Prairie

A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Sun Prairie. The earliest assignment date recorded in the file for these codes is 2004. 2 of the 7 were assigned in 2020 or later.

Prefixes assigned in Sun Prairie, WI
Area codePrefixes (NXX)
608318, 453, 478, 825, 834, 837, 941

Source: NANPA utilized central office code file.

When Sun Prairie's exchanges were assigned

The table groups Sun Prairie's exchanges by the decade NANPA recorded them as assigned.

Sun Prairie, WI: exchanges by decade assigned
Decade assignedExchangesShare
2000s133%
2020s267%

Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.

What makes a number local to Sun Prairie

Phone numbers are tied to a rate center, the local calling area used to decide whether a call is local or toll. Sun Prairie's numbers are rated to the SUNPRAIRIE rate center in NANPA's records. A business number from one of the prefixes above shows up on customers' phones as a Sun Prairie number.

If your business already has a Sun Prairie number, porting it to Callata is free and keeps it on your cards, listings and vehicles.

The local business market

Sun Prairie is part of the Madison, WI metro area, home to 708,000 people in 2024. County Business Patterns counted 17,791 business establishments in the Madison, WI metro area in 2023, employing 358,759 people. The largest sectors by establishment count are professional, scientific, and technical services (2,203), retail trade (2,026), and health care and social assistance (1,934).

Selected industries in the Madison, WI metro area, 2023
IndustryEstablishmentsEmployeesEmployees per establishment
Full-service restaurants60112,18720.3
Limited-service restaurants51010,10719.8
Offices of real estate agents and brokers3758392.2
Landscaping services3022,1927.3
Insurance agencies and brokerages2951,3504.6
Residential remodelers2901,5005.2
Law offices2521,9697.8
Child day care services2423,53714.6

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

Business phone service in Sun Prairie

For $99 a month, Callata puts a team of up to 5 on one plan ($20 for each person after that): up to 3 local numbers, unlimited inbound calls, a pooled allowance of 1,500 outbound US and Canada minutes per user, browser and cell calling, voicemail transcription with urgency triage, recorded calls with AI summaries and business-hours routing, with E911 on every number.

Porting a number you already use in Sun Prairie is free, and business texting is available once the carrier registration (10DLC) is approved; the registration carries a one-time $49 fee. Which specific numbers are open in a given area code depends on carrier inventory at the time you sign up.

AI agents are optional: an AI receptionist or scheduler can pick up when the team is busy or closed, take a message, send a text or email, or transfer the call. They draw on prepaid AI minutes ($0.25/minute), disclose that they are AI, and outbound AI calls require prior consent and are limited to 8am–9pm.

The comparison below uses 20 users, the rounded average establishment size in the Madison, WI metro area. At list prices checked September 28, 2026, that is $499.00 a month on Ooma Office Pro and $600.00 on RingCentral RingEX Core. Callata comes to $399.00 a month for 20 users ($99 a month with 5 users included, then $20 per additional user), below both.

Monthly list price for a 20-person team
Provider (plan)Pricing basisPer monthPer year
Callata (Callata Office)$99 incl. 5 users, $20 per extra user$399.00$4,788.00
Quo (Starter)$19.00 per user$380.00$4,560.00
Nextiva (Core)$23.00 per user$460.00$5,520.00
Ooma (Office Pro)$24.95 per user$499.00$5,988.00
Dialpad (Standard)$27.00 per user$540.00$6,480.00
RingCentral (RingEX Core)$30.00 per user$600.00$7,200.00

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 Sun Prairie, WI?

608. All exchanges NANPA lists for Sun Prairie are in 608.

How many phone companies have exchanges in Sun Prairie?

4, holding 7 exchanges between them, according to NANPA's 10/01/2026 file.

Can I keep my existing Sun Prairie 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 Sun Prairie?

Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 20 users come to $399.00 a month. For comparison, 20 users on RingCentral RingEX Core list at $600.00 a month (checked September 28, 2026).