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Get a local business phone number in Wausau, WI

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

Area code
715 / 534
Exchanges
40NANPA-assigned
Carriers
14
Population
40,262Census 2024 est.

Area codes in Wausau

With 40,262 residents in the Census 2024 estimate, Wausau sits in Marathon County, Wisconsin. NANPA lists 40 exchanges for its rate center across 2 area codes; 715 has the most (35, 88%). 715 is part of an overlay with 534, so a new local number in Wausau may carry any of those codes depending on which have numbers available. Wausau is in the Central time zone.

According to NANPA's dialing-plan data, local calls within 715 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Area codes with exchanges in Wausau, WI
Area codeExchanges hereShareIn service sinceOverlay withTime zone
7153588%1947534Central
534513%2010715Central

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

Who holds Wausau phone exchanges

14 carriers hold the 40 exchanges assigned to Wausau's rate center. Frontier North INC. - Wi has the most, with 16. 19 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. A business number in Wausau can come from any of these blocks; once it is yours, porting lets it move between providers.

Carriers holding exchanges in Wausau, WI
Carrier (NANPA operating company)ExchangesShare
Frontier North INC. - Wi1640%
New Cingular Wireless PCS, LLC - Il615%
New Cell d/b/a Cellcom513%
Level 3 Communications, LLC - Wi25.0%
T-mobile USA, INC.25.0%
Onvoy, LLC - Wi12.5%
Fractel, LLC12.5%
Ton80 Communications, LLC12.5%
Onvoy Spectrum, LLC12.5%
Metropcs, INC.12.5%
Charter Ip Enabled Services, LLC12.5%
Mcimetro Access Transmission Services LLC12.5%

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 Wausau

Each prefix below is a block of up to 10,000 numbers that NANPA assigned to Wausau's rate center (WAUSAU). The earliest assignment date recorded in the file for these codes is 2001. 6 of the 40 were assigned in 2020 or later.

Prefixes assigned in Wausau, WI
Area codePrefixes (NXX)
534232, 246, 356, 626, 901
715203, 212, 241, 261, 297, 298, 301, 302, 348, 355, 359, 370, 393, 432, 470, 551, 571, 573, 574, 576, 581, 675, 679, 803, 841, 842, 843, 845, 846, 847, 848, 849, 870, 907, 971

Source: NANPA utilized central office code file.

When Wausau's exchanges were assigned

Assignment dates show when each block of Wausau numbers was added to the local supply.

Wausau, WI: exchanges by decade assigned
Decade assignedExchangesShare
2000s750%
2010s17.1%
2020s643%

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

Rate centers and local calling in Wausau

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

New local numbers are drawn from carrier inventory, so the exact 715 numbers available change over time; porting an existing number is free.

Who does business near Wausau

Wausau is part of the Wausau, WI metro area, home to 139,000 people in 2024. County Business Patterns counted 3,436 business establishments in the Wausau, WI metro area in 2023, employing 65,770 people. The largest sectors by establishment count are health care and social assistance (415), retail trade (414), and other services (except public administration) (377).

Selected industries in the Wausau, WI metro area, 2023
IndustryEstablishmentsEmployeesEmployees per establishment
Full-service restaurants1121,85316.5
Physician practices943,18233.9
Limited-service restaurants891,56517.6
Insurance agencies and brokerages693404.9
Drinking places634847.7
Plumbing, heating and air-conditioning contractors545029.3
General automotive repair shops511963.8
Dental offices4950710.3

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

A Wausau 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 Wausau, 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.

Per-seat phone plans multiply by headcount. For the rounded average establishment size in the Wausau, WI metro area, 19 users on RingCentral RingEX Core come to $570.00 a month and on Ooma Office Pro $474.05, at month-to-month list prices checked September 28, 2026. On Callata the same 19 people cost $379.00 a month, less than either per-seat plan.

Monthly list price for a 19-person team
Provider (plan)Pricing basisPer monthPer year
Callata (Callata Office)$99 incl. 5 users, $20 per extra user$379.00$4,548.00
Quo (Starter)$19.00 per user$361.00$4,332.00
Nextiva (Core)$23.00 per user$437.00$5,244.00
Ooma (Office Pro)$24.95 per user$474.05$5,688.60
Dialpad (Standard)$27.00 per user$513.00$6,156.00
RingCentral (RingEX Core)$30.00 per user$570.00$6,840.00

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 Wausau, WI?

Wausau has exchanges in 715 and 534; 715 has the most.

How many phone companies have exchanges in Wausau?

14, holding 40 exchanges between them, according to NANPA's 10/01/2026 file.

Can I keep my existing Wausau 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 Wausau?

Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 19 users come to $379.00 a month. For comparison, 19 users on RingCentral RingEX Core list at $570.00 a month (checked September 28, 2026).