CallataGuidesGet a local business phone number in King, NC
King's area codes, prefixes and carriers from NANPA records, and how to put a King number in front of your customers.
- Area code
- 336 / 743
- Exchanges
- 5NANPA-assigned
- Carriers
- 4
- Population
- 7,764Census 2024 est.
King area codes
King city is a Census place in Stokes County, North Carolina, with an estimated 7,764 residents in 2024. NANPA lists 5 exchanges for its rate center across 2 area codes; 336 has the most (3, 60%). 336 is part of an overlay with 743, so a new local number in King may carry any of those codes depending on which have numbers available. King is in the Eastern time zone.
According to NANPA's dialing-plan data, local calls within 336 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.
King exchanges by carrier
4 carriers hold the 5 exchanges assigned to King's rate center. Windstream North Carolina, INC. has the most, with 2. 4 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 |
|---|---|---|
| Windstream North Carolina, INC. | 2 | 40% |
| Teleport Communications America, LLC - NC | 1 | 20% |
| Onvoy, LLC - NC | 1 | 20% |
| Ton80 Communications, LLC | 1 | 20% |
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 King
Each prefix below is a block of up to 10,000 numbers that NANPA assigned to King's rate center (KING). The earliest assignment date recorded in the file for these codes is 2013. 2 of the 5 were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 336 | 296, 983, 985 |
| 743 | 272, 832 |
Source: NANPA utilized central office code file.
When King's exchanges were assigned
The table groups King's exchanges by the decade NANPA recorded them as assigned.
| Decade assigned | Exchanges | Share |
|---|---|---|
| 2010s | 1 | 33% |
| 2020s | 2 | 67% |
Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.
What makes a number local to King
Phone numbers are tied to a rate center, the local calling area used to decide whether a call is local or toll. King's numbers are rated to the KING rate center in NANPA's records. A business number from one of the prefixes above shows up on customers' phones as a King number.
If your business already has a King number, porting it to Callata is free and keeps it on your cards, listings and vehicles.
The local business market
King is part of the Winston-Salem, NC metro area, home to 705,000 people in 2024. County Business Patterns counted 14,336 business establishments in the Winston, NC metro area in 2023, employing 257,305 people. The largest sectors by establishment count are retail trade (2,198), construction (1,692), and other services (except public administration) (1,592).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Full-service restaurants | 511 | 10,399 | 20.4 |
| Limited-service restaurants | 491 | 12,505 | 25.5 |
| Landscaping services | 320 | 1,546 | 4.8 |
| Offices of real estate agents and brokers | 276 | 553 | 2.0 |
| Insurance agencies and brokerages | 266 | 973 | 3.7 |
| Plumbing, heating and air-conditioning contractors | 252 | 2,624 | 10.4 |
| Residential remodelers | 231 | 583 | 2.5 |
| Law offices | 228 | 1,799 | 7.9 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
Business phone service in King
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 King 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.
An 18-person team is the benchmark here, the rounded average establishment size in the Winston, NC metro area. Billed per seat at month-to-month list prices (checked September 28, 2026), RingCentral RingEX Core costs $540.00 a month and Ooma Office Pro $449.10. Callata comes to $359.00 a month for 18 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 | $359.00 | $4,308.00 |
| Quo (Starter) | $19.00 per user | $342.00 | $4,104.00 |
| Nextiva (Core) | $23.00 per user | $414.00 | $4,968.00 |
| Ooma (Office Pro) | $24.95 per user | $449.10 | $5,389.20 |
| Dialpad (Standard) | $27.00 per user | $486.00 | $5,832.00 |
| RingCentral (RingEX Core) | $30.00 per user | $540.00 | $6,480.00 |
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 King, NC?
King has exchanges in 336 and 743; 336 has the most.
How many phone companies have exchanges in King?
4, holding 5 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing King 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 King?
Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 18 users come to $359.00 a month. For comparison, 18 users on RingCentral RingEX Core list at $540.00 a month (checked September 28, 2026).