CallataGuidesGet a local business phone number in Jasper, TN
Jasper's area code, prefixes and carriers from NANPA records, and how to put a Jasper number in front of your customers.
- Area code
- 423
- Exchanges
- 4NANPA-assigned
- Carriers
- 4
- Population
- 3,655Census 2024 est.
Jasper area codes
With 3,655 residents in the Census 2024 estimate, Jasper sits in Marion County, Tennessee. All 4 exchanges NANPA lists for its rate center are in area code 423. 423 is part of an overlay with 729, so a new local number in Jasper may carry any of those codes depending on which have numbers available. Jasper is in the Eastern and Central time zone.
According to NANPA's dialing-plan data, local calls within 423 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 |
|---|---|---|---|---|---|
| 423 | 4 | 100% | 1995 | 729 | Eastern and Central |
Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.
Phone carriers in Jasper
4 carriers hold the 4 exchanges assigned to Jasper's rate center. Telnyx LLC has the most, with 1. 3 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. A business number in Jasper can come from any of these blocks; once it is yours, porting lets it move between providers.
| Carrier (NANPA operating company) | Exchanges | Share |
|---|---|---|
| Telnyx LLC | 1 | 25% |
| Onvoy, LLC - TN | 1 | 25% |
| Paetec Itel, LLC | 1 | 25% |
| Bellsouth Telecomm INC d/b/a South Central Bell Tel | 1 | 25% |
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 Jasper
A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Jasper. The earliest assignment date recorded in the file for these codes is 2005. 1 of the 4 were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 423 | 651, 675, 939, 942 |
Source: NANPA utilized central office code file.
When Jasper's exchanges were assigned
Assignment dates show when each block of Jasper numbers was added to the local supply.
| 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.
What makes a number local to Jasper
What a caller sees as "local" is the area code plus prefix. In Jasper, those come from the JASPER rate center, as recorded by NANPA.
New local numbers are drawn from carrier inventory, so the exact 423 numbers available change over time; porting an existing number is free.
Businesses around Jasper
Jasper is part of the Chattanooga, TN-GA metro area, home to 588,000 people in 2024. County Business Patterns counted 12,621 business establishments in the Chattanooga, TN-GA metro area in 2023, employing 243,302 people. The largest sectors by establishment count are retail trade (2,004), health care and social assistance (1,504), and other services (except public administration) (1,373).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Limited-service restaurants | 478 | 10,112 | 21.2 |
| Full-service restaurants | 432 | 11,468 | 26.5 |
| Physician practices | 331 | 6,563 | 19.8 |
| Insurance agencies and brokerages | 240 | 1,115 | 4.6 |
| Dental offices | 205 | 1,705 | 8.3 |
| Law offices | 201 | 1,327 | 6.6 |
| Plumbing, heating and air-conditioning contractors | 173 | 3,000 | 17.3 |
| Offices of real estate agents and brokers | 134 | 409 | 3.1 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
Business phone service in Jasper
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 Jasper, 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 19 users, the rounded average establishment size in the Chattanooga, TN-GA metro area. At list prices checked September 28, 2026, that is $474.05 a month on Ooma Office Pro and $570.00 on RingCentral RingEX Core. On Callata the same 19 people cost $379.00 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 | $379.00 | $4,548.00 |
| Quo (Starter) | $19.00 per user | $361.00 | $4,332.00 |
| Nextiva (Core) | $23.00 per user | $437.00 | $5,244.00 |
| Ooma (Office Pro) | $24.95 per user | $474.05 | $5,688.60 |
| Dialpad (Standard) | $27.00 per user | $513.00 | $6,156.00 |
| RingCentral (RingEX Core) | $30.00 per user | $570.00 | $6,840.00 |
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 Jasper, TN?
423. All exchanges NANPA lists for Jasper are in 423.
How many phone companies have exchanges in Jasper?
4, holding 4 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Jasper 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 Jasper?
Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 19 users come to $379.00 a month. For comparison, 19 users on RingCentral RingEX Core list at $570.00 a month (checked September 28, 2026).