CallataGuidesGet a local business phone number in Three Rivers, TX
Three Rivers's area code, prefixes and carriers from NANPA records, and how to put a Three Rivers number in front of your customers.
- Area code
- 361
- Exchanges
- 5NANPA-assigned
- Carriers
- 5
- Population
- 1,803Census 2024 est.
Three Rivers area codes
Three Rivers city is a Census place in Live Oak County, Texas, with an estimated 1,803 residents in 2024. All 5 exchanges NANPA lists for its rate center are in area code 361. Three Rivers is in the Central time zone.
According to NANPA's dialing-plan data, local calls within 361 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 |
|---|---|---|---|---|---|
| 361 | 5 | 100% | 1999 | none | Central |
Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.
Phone carriers in Three Rivers
5 carriers hold the 5 exchanges assigned to Three Rivers'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. 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 |
|---|---|---|
| Telnyx LLC | 1 | 20% |
| Onvoy, LLC - TX | 1 | 20% |
| New Cingular Wireless PCS, LLC - Il | 1 | 20% |
| VTX Communications, LLC | 1 | 20% |
| Frontier Southwest INC d/b/a Frontier Comm of Texas | 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 Three Rivers
A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Three Rivers. The earliest assignment date recorded in the file for these codes is 2012. None were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 361 | 272, 316, 436, 784, 786 |
Source: NANPA utilized central office code file.
What makes a number local to Three Rivers
Phone numbers are tied to a rate center, the local calling area used to decide whether a call is local or toll. Three Rivers's numbers are rated to the THREERIVRS rate center in NANPA's records. A business number from one of the prefixes above shows up on customers' phones as a Three Rivers number.
If your business already has a Three Rivers number, porting it to Callata is free and keeps it on your cards, listings and vehicles.
Businesses around Three Rivers
Three Rivers is outside any Census metro or micropolitan area, so the figures below are statewide. County Business Patterns counted 670,878 business establishments in Texas in 2023, employing 12,012,629 people. The largest sectors by establishment count are retail trade (84,369), professional, scientific, and technical services (83,842), and health care and social assistance (80,576).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Limited-service restaurants | 24,360 | 545,407 | 22.4 |
| Physician practices | 21,500 | 217,413 | 10.1 |
| Full-service restaurants | 20,819 | 493,197 | 23.7 |
| Law offices | 13,833 | 87,363 | 6.3 |
| Insurance agencies and brokerages | 12,210 | 78,885 | 6.5 |
| Dental offices | 11,902 | 86,333 | 7.3 |
| Offices of real estate agents and brokers | 11,405 | 33,989 | 3.0 |
| Management consulting firms | 9,705 | 80,499 | 8.3 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
Business phone service in Three Rivers
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 Three Rivers, 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.
Per-seat phone plans multiply by headcount. For the rounded average establishment size in Texas, 18 users on RingCentral RingEX Core come to $540.00 a month and on Ooma Office Pro $449.10, at month-to-month list prices checked September 28, 2026. On Callata the same 18 people cost $359.00 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 | $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 Three Rivers, TX?
361. All exchanges NANPA lists for Three Rivers are in 361.
How many phone companies have exchanges in Three Rivers?
5, holding 5 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Three Rivers 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 Three Rivers?
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).