CallataGuidesGet a local business phone number in Williston, SC
Williston's area codes, prefixes and carriers from NANPA records, and how to put a Williston number in front of your customers.
- Area code
- 803 / 839
- Exchanges
- 2NANPA-assigned
- Carriers
- 2
- Population
- 2,879Census 2024 est.
What area code is Williston, SC?
With 2,879 residents in the Census 2024 estimate, Williston sits in Barnwell County, South Carolina. NANPA lists 2 exchanges for its rate center across 2 area codes; 803 has the most (1, 50%). 803 is part of an overlay with 839, so a new local number in Williston may carry any of those codes depending on which have numbers available. Williston is in the Eastern time zone.
According to NANPA's dialing-plan data, local calls within 803 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.
Phone carriers in Williston
2 carriers hold the 2 exchanges assigned to Williston's rate center. Williston Tel. CO. has the most, with 1. 2 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. A business number in Williston can come from any of these blocks; once it is yours, porting lets it move between providers.
| Carrier (NANPA operating company) | Exchanges | Share |
|---|---|---|
| Williston Tel. CO. | 1 | 50% |
| Ton80 Communications, LLC | 1 | 50% |
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 Williston
Each prefix below is a block of up to 10,000 numbers that NANPA assigned to Williston's rate center (WILLISTON). The earliest assignment date recorded in the file for these codes is 2022. 1 of the 2 were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 803 | 266 |
| 839 | 887 |
Source: NANPA utilized central office code file.
Rate centers and local calling 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.
If your business already has a Williston number, porting it to Callata is free and keeps it on your cards, listings and vehicles.
Businesses around Williston
Williston is outside any Census metro or micropolitan area, so the figures below are statewide. County Business Patterns counted 122,958 business establishments in South Carolina in 2023, employing 2,067,143 people. The largest sectors by establishment count are retail trade (18,647), other services (except public administration) (12,908), and health care and social assistance (12,694).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Full-service restaurants | 4,583 | 98,946 | 21.6 |
| Limited-service restaurants | 4,227 | 88,115 | 20.8 |
| Offices of real estate agents and brokers | 3,337 | 7,097 | 2.1 |
| Law offices | 2,590 | 16,264 | 6.3 |
| Physician practices | 2,464 | 39,087 | 15.9 |
| Insurance agencies and brokerages | 2,042 | 9,737 | 4.8 |
| Landscaping services | 1,910 | 13,383 | 7.0 |
| Dental offices | 1,758 | 14,601 | 8.3 |
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.
Porting a number you already use in Williston 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.
Per-seat phone plans multiply by headcount. For the rounded average establishment size in South Carolina, 17 users on RingCentral RingEX Core come to $510.00 a month and on Ooma Office Pro $424.15, at month-to-month list prices checked September 28, 2026. Callata comes to $339.00 a month for 17 users ($99 a month with 5 users included, then $20 per additional user), below both.
| Provider (plan) | Pricing basis | Per month | Per year |
|---|---|---|---|
| Callata (Callata Office) | $99 incl. 5 users, $20 per extra user | $339.00 | $4,068.00 |
| Quo (Starter) | $19.00 per user | $323.00 | $3,876.00 |
| Nextiva (Core) | $23.00 per user | $391.00 | $4,692.00 |
| Ooma (Office Pro) | $24.95 per user | $424.15 | $5,089.80 |
| Dialpad (Standard) | $27.00 per user | $459.00 | $5,508.00 |
| RingCentral (RingEX Core) | $30.00 per user | $510.00 | $6,120.00 |
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, SC?
Williston has exchanges in 803 and 839; 803 has the most.
How many phone companies have exchanges in Williston?
2, holding 2 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; 17 users come to $339.00 a month. For comparison, 17 users on RingCentral RingEX Core list at $510.00 a month (checked September 28, 2026).