CallataGuidesGet a local business phone number in Plymouth, WI
Plymouth's area code, prefixes and carriers from NANPA records, and how to put a Plymouth number in front of your customers.
- Area code
- 920
- Exchanges
- 6NANPA-assigned
- Carriers
- 5
- Population
- 8,854Census 2024 est.
What area code is Plymouth, WI?
With 8,854 residents in the Census 2024 estimate, Plymouth sits in Sheboygan County, Wisconsin. All 6 exchanges NANPA lists for its rate center are in area code 920. 920 is part of an overlay with 274, so a new local number in Plymouth may carry any of those codes depending on which have numbers available. Plymouth is in the Central time zone.
According to NANPA's dialing-plan data, local calls within 920 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.
| Area code | Exchanges here | Share | In service since | Overlay with | Time zone |
|---|---|---|---|---|---|
| 920 | 6 | 100% | 1997 | 274 | Central |
Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.
Plymouth exchanges by carrier
5 carriers hold the 6 exchanges assigned to Plymouth's rate center. Frontier North INC. - Wi has the most, with 2. 5 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.
| Carrier (NANPA operating company) | Exchanges | Share |
|---|---|---|
| Frontier North INC. - Wi | 2 | 33% |
| Cellco Partnership d/b/a Verizon Wireless - Wi | 1 | 17% |
| Level 3 Communications, LLC - Wi | 1 | 17% |
| Centurylink Communications, LLC | 1 | 17% |
| United States Cellular - Wi | 1 | 17% |
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.
Plymouth phone prefixes
Each prefix below is a block of up to 10,000 numbers that NANPA assigned to Plymouth's rate center (PLYMOUTH). The earliest assignment date recorded in the file for these codes is 2001. None were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 920 | 400, 449, 635, 838, 892, 893 |
Source: NANPA utilized central office code file.
What makes a number local to Plymouth
Phone numbers are tied to a rate center, the local calling area used to decide whether a call is local or toll. Plymouth's numbers are rated to the PLYMOUTH rate center in NANPA's records. A business number from one of the prefixes above shows up on customers' phones as a Plymouth number.
If your business already has a Plymouth number, porting it to Callata is free and keeps it on your cards, listings and vehicles.
Businesses around Plymouth
Plymouth is part of the Sheboygan, WI metro area, home to 118,000 people in 2024. County Business Patterns counted 2,671 business establishments in the Sheboygan, WI metro area in 2023, employing 53,030 people. The largest sectors by establishment count are retail trade (357), health care and social assistance (347), and other services (except public administration) (304).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Full-service restaurants | 96 | 1,461 | 15.2 |
| Limited-service restaurants | 79 | 1,517 | 19.2 |
| Physician practices | 66 | — | — |
| Landscaping services | 61 | 291 | 4.8 |
| Insurance agencies and brokerages | 54 | 200 | 3.7 |
| Drinking places | 54 | 250 | 4.6 |
| Dental offices | 44 | 385 | 8.8 |
| Plumbing, heating and air-conditioning contractors | 39 | 417 | 10.7 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
Business phone service in Plymouth
Callata Office costs $99 per month for up to 5 people, and each additional user is $20 a month. That covers up to 3 local numbers, calling from a browser or your cell, transcribed voicemail, recorded calls with AI summaries, after-hours routing and E911 on each number.
If you already have a number in Plymouth, 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.
The comparison below uses 20 users, the rounded average establishment size in the Sheboygan, 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. On Callata the same 20 people cost $399.00 a month, less than either per-seat plan.
| Provider (plan) | Pricing basis | Per month | Per 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 Plymouth, WI?
920. All exchanges NANPA lists for Plymouth are in 920.
How many phone companies have exchanges in Plymouth?
5, holding 6 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Plymouth 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 Plymouth?
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).