CallataGuidesGet a local business phone number in St. Stephen, SC
St. Stephen's area codes, prefixes and carriers from NANPA records, and how to put a St. Stephen number in front of your customers.
- Area code
- 843 / 854
- Exchanges
- 3NANPA-assigned
- Carriers
- 3
- Population
- 1,592Census 2024 est.
St. Stephen area codes
St. Stephen town is a Census place in Berkeley County, South Carolina, with an estimated 1,592 residents in 2024. NANPA lists 3 exchanges for its rate center across 2 area codes; 843 has the most (2, 67%). 843 is part of an overlay with 854, so a new local number in St. Stephen may carry any of those codes depending on which have numbers available. St. Stephen is in the Eastern time zone.
According to NANPA's dialing-plan data, local calls within 843 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.
Who holds St. Stephen phone exchanges
3 carriers hold the 3 exchanges assigned to St. Stephen's rate center. ST. Stephen Tel. CO. has the most, with 1. 3 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 |
|---|---|---|
| ST. Stephen Tel. CO. | 1 | 33% |
| Cellco Partnership d/b/a Verizon Wireless - SC | 1 | 33% |
| Ton80 Communications, LLC | 1 | 33% |
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.
St. Stephen phone prefixes
These are the central office codes NANPA records for St. Stephen. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2009. 1 of the 3 were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 843 | 567, 749 |
| 854 | 263 |
Source: NANPA utilized central office code file.
When St. Stephen's exchanges were assigned
The table groups St. Stephen's exchanges by the decade NANPA recorded them as assigned.
| Decade assigned | Exchanges | Share |
|---|---|---|
| 2000s | 1 | 50% |
| 2020s | 1 | 50% |
Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.
Rate centers and local calling in St. Stephen
What a caller sees as "local" is the area code plus prefix. In St. Stephen, those come from the ST STEPHEN rate center, as recorded by NANPA.
If your business already has a St. Stephen number, porting it to Callata is free and keeps it on your cards, listings and vehicles.
Businesses around St. Stephen
St. Stephen is part of the Charleston-North Charleston, SC metro area, home to 870,000 people in 2024. County Business Patterns counted 22,892 business establishments in the Charleston, SC metro area in 2023, employing 321,692 people. The largest sectors by establishment count are professional, scientific, and technical services (3,015), retail trade (2,964), and construction (2,367).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Full-service restaurants | 879 | 21,033 | 23.9 |
| Offices of real estate agents and brokers | 832 | 1,537 | 1.8 |
| Limited-service restaurants | 669 | 13,541 | 20.2 |
| Law offices | 624 | 4,795 | 7.7 |
| Physician practices | 577 | 7,795 | 13.5 |
| Residential remodelers | 374 | 1,494 | 4.0 |
| Insurance agencies and brokerages | 345 | 2,083 | 6.0 |
| Dental offices | 338 | 2,751 | 8.1 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
Setting up a St. Stephen 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 St. Stephen 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 the Charleston, SC metro area, 14 users on RingCentral RingEX Core come to $420.00 a month and on Ooma Office Pro $349.30, at month-to-month list prices checked September 28, 2026. Callata comes to $279.00 a month for 14 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 | $279.00 | $3,348.00 |
| Quo (Starter) | $19.00 per user | $266.00 | $3,192.00 |
| Nextiva (Core) | $23.00 per user | $322.00 | $3,864.00 |
| Ooma (Office Pro) | $24.95 per user | $349.30 | $4,191.60 |
| Dialpad (Standard) | $27.00 per user | $378.00 | $4,536.00 |
| RingCentral (RingEX Core) | $30.00 per user | $420.00 | $5,040.00 |
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 St. Stephen, SC?
St. Stephen has exchanges in 843 and 854; 843 has the most.
How many phone companies have exchanges in St. Stephen?
3, holding 3 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing St. Stephen 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 St. Stephen?
Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 14 users come to $279.00 a month. For comparison, 14 users on RingCentral RingEX Core list at $420.00 a month (checked September 28, 2026).