CallataGuidesGet a local business phone number in Williston, ND
Williston's area code, prefixes and carriers from NANPA records, and how to put a Williston number in front of your customers.
- Area code
- 701
- Exchanges
- 12NANPA-assigned
- Carriers
- 6
- Population
- 28,821Census 2024 est.
Williston area codes
Williston, in Williams County, North Dakota, had a Census-estimated population of 28,821 in July 2024. All 12 exchanges NANPA lists for its rate center are in area code 701. Williston is in the Central and Mountain time zone.
According to NANPA's dialing-plan data, local calls within 701 are dialed as seven digits and toll calls as 1 plus ten digits.
| Area code | Exchanges here | Share | In service since | Overlay with | Time zone |
|---|---|---|---|---|---|
| 701 | 12 | 100% | 1947 | none | Central and Mountain |
Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.
Phone carriers in Williston
6 carriers hold the 12 exchanges assigned to Williston's rate center. Cellco Partnership d/b/a Verizon Wireless - ND has the most, with 4. 6 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. The table counts codes by the operating company NANPA assigned them to, not by who serves each number today.
| Carrier (NANPA operating company) | Exchanges | Share |
|---|---|---|
| Cellco Partnership d/b/a Verizon Wireless - ND | 4 | 33% |
| NCC Enterprises | 3 | 25% |
| New Cingular Wireless PCS, LLC - Il | 2 | 17% |
| Sagebrush Cellular, INC. | 1 | 8.3% |
| Wide Voice, LLC - ND | 1 | 8.3% |
| Onvoy, LLC - ND | 1 | 8.3% |
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.
Exchanges (NPA-NXX) assigned in Williston
A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Williston. The earliest assignment date recorded in the file for these codes is 2004. None were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 701 | 570, 571, 572, 577, 580, 609, 651, 713, 770, 774, 901, 978 |
Source: NANPA utilized central office code file.
When Williston's exchanges were assigned
Assignment dates show when each block of Williston numbers was added to the local supply.
| Decade assigned | Exchanges | Share |
|---|---|---|
| 2000s | 2 | 40% |
| 2010s | 3 | 60% |
Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.
How local numbers work in Williston
What a caller sees as "local" is the area code plus prefix. In Williston, those come from the WILLISTON rate center, as recorded by NANPA.
New local numbers are drawn from carrier inventory, so the exact 701 numbers available change over time; porting an existing number is free.
The local business market
Williston is part of the Williston, ND micropolitan area, home to 40,763 people in 2024. County Business Patterns counted 1,652 business establishments in the Williston, ND micropolitan area in 2023, employing 21,785 people. The largest sectors by establishment count are professional, scientific, and technical services (182), mining, quarrying, and oil and gas extraction (165), and transportation and warehousing (153).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Construction, mining and forestry machinery and equipment rental and leasing companies | 37 | 503 | 13.6 |
| Limited-service restaurants | 30 | 659 | 22.0 |
| Offices of real estate agents and brokers | 28 | 46 | 1.6 |
| Full-service restaurants | 27 | 608 | 22.5 |
| General freight trucking companies (local) | 23 | 123 | 5.3 |
| General automotive repair shops | 22 | 97 | 4.4 |
| Hotels and motels | 22 | 310 | 14.1 |
| Electrical contractors | 20 | — | — |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
Setting up a Williston business line
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 Williston, 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 13 users, the rounded average establishment size in the Williston, ND micropolitan area. At list prices checked September 28, 2026, that is $324.35 a month on Ooma Office Pro and $390.00 on RingCentral RingEX Core. On Callata the same 13 people cost $259.00 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 | $259.00 | $3,108.00 |
| Quo (Starter) | $19.00 per user | $247.00 | $2,964.00 |
| Nextiva (Core) | $23.00 per user | $299.00 | $3,588.00 |
| Ooma (Office Pro) | $24.95 per user | $324.35 | $3,892.20 |
| Dialpad (Standard) | $27.00 per user | $351.00 | $4,212.00 |
| RingCentral (RingEX Core) | $30.00 per user | $390.00 | $4,680.00 |
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 Williston, ND?
701. All exchanges NANPA lists for Williston are in 701.
How many phone companies have exchanges in Williston?
6, holding 12 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Williston 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 Williston?
Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 13 users come to $259.00 a month. For comparison, 13 users on RingCentral RingEX Core list at $390.00 a month (checked September 28, 2026).