CallataGuidesGet a local business phone number in Thompson Falls, MT
Thompson Falls's area code, prefixes and carriers from NANPA records, and how to put a Thompson Falls number in front of your customers.
- Area code
- 406
- Exchanges
- 3NANPA-assigned
- Carriers
- 3
- Population
- 1,526Census 2024 est.
Area codes in Thompson Falls
Thompson Falls, in Sanders County, Montana, had a Census-estimated population of 1,526 in July 2024. All 3 exchanges NANPA lists for its rate center are in area code 406. Thompson Falls is in the Mountain time zone.
According to NANPA's dialing-plan data, local calls within 406 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 |
|---|---|---|---|---|---|
| 406 | 3 | 100% | 1947 | none | Mountain |
Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.
Who holds Thompson Falls phone exchanges
3 carriers hold the 3 exchanges assigned to Thompson Falls's rate center. New Cingular Wireless PCS, 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 Thompson Falls can come from any of these blocks; once it is yours, porting lets it move between providers.
| Carrier (NANPA operating company) | Exchanges | Share |
|---|---|---|
| New Cingular Wireless PCS, LLC | 1 | 33% |
| Western Montana Communitytel INC. - MT | 1 | 33% |
| Blackfoot Tel. Coop., INC. | 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.
Local prefixes for Thompson Falls
Each prefix below is a block of up to 10,000 numbers that NANPA assigned to Thompson Falls's rate center (THOMPSNFLS). The earliest assignment date recorded in the file for these codes is 2003. None were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 406 | 242, 615, 827 |
Source: NANPA utilized central office code file.
When Thompson Falls's exchanges were assigned
Assignment dates show when each block of Thompson Falls numbers was added to the local supply.
| Decade assigned | Exchanges | Share |
|---|---|---|
| 2000s | 1 | 50% |
| 2010s | 1 | 50% |
Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.
How local numbers work in Thompson Falls
What a caller sees as "local" is the area code plus prefix. In Thompson Falls, those come from the THOMPSNFLS rate center, as recorded by NANPA.
New local numbers are drawn from carrier inventory, so the exact 406 numbers available change over time; porting an existing number is free.
The local business market
Thompson Falls is outside any Census metro or micropolitan area, so the figures below are statewide. County Business Patterns counted 42,566 business establishments in Montana in 2023, employing 409,312 people. The largest sectors by establishment count are construction (6,766), retail trade (4,706), and health care and social assistance (4,488).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Offices of real estate agents and brokers | 1,100 | — | — |
| New single-family housing construction contractors | 1,075 | 3,375 | 3.1 |
| Full-service restaurants | 1,060 | 20,162 | 19.0 |
| Residential remodelers | 840 | 2,122 | 2.5 |
| Limited-service restaurants | 806 | 15,352 | 19.0 |
| Plumbing, heating and air-conditioning contractors | 712 | 4,448 | 6.2 |
| Landscaping services | 694 | 2,435 | 3.5 |
| Law offices | 678 | 2,673 | 3.9 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
Setting up a Thompson Falls business line
Callata is a business phone system priced at $99 a month with 5 users included, then $20 per additional user. Callata Office includes up to 3 local business numbers, unlimited inbound calling, 1,500 pooled outbound US and Canada minutes per user each month, a browser softphone that can also ring your cell, voicemail with transcription, call recording with AI summaries, business-hours routing and E911 on every number.
If you already have a number in Thompson Falls, 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 Montana, 10 users on RingCentral RingEX Core come to $300.00 a month and on Ooma Office Pro $249.50, at month-to-month list prices checked September 28, 2026. On Callata the same 10 people cost $199.00 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 | $199.00 | $2,388.00 |
| Quo (Starter) | $19.00 per user | $190.00 | $2,280.00 |
| Nextiva (Core) | $23.00 per user | $230.00 | $2,760.00 |
| Ooma (Office Pro) | $24.95 per user | $249.50 | $2,994.00 |
| Dialpad (Standard) | $27.00 per user | $270.00 | $3,240.00 |
| RingCentral (RingEX Core) | $30.00 per user | $300.00 | $3,600.00 |
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 Thompson Falls, MT?
406. All exchanges NANPA lists for Thompson Falls are in 406.
How many phone companies have exchanges in Thompson Falls?
3, holding 3 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Thompson Falls 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 Thompson Falls?
Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 10 users come to $199.00 a month. For comparison, 10 users on RingCentral RingEX Core list at $300.00 a month (checked September 28, 2026).