Get a local business phone number in Dillon, MT
Dillon's area code, prefixes and carriers from NANPA records, and how to put a Dillon number in front of your customers.
- Area code
- 406
- Exchanges
- 7NANPA-assigned
- Carriers
- 4
- Population
- 4,242Census 2024 est.
What area code is Dillon, MT?
With 4,242 residents in the Census 2024 estimate, Dillon sits in Beaverhead County, Montana. All 7 exchanges NANPA lists for its rate center are in area code 406. Dillon 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 | 7 | 100% | 1947 | none | Mountain |
Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.
Phone carriers in Dillon
4 carriers hold the 7 exchanges assigned to Dillon's rate center. New Cingular Wireless PCS, LLC has the most, with 2. 6 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 |
|---|---|---|
| New Cingular Wireless PCS, LLC | 2 | 29% |
| Cellco Partnership d/b/a Verizon Wireless - MT | 2 | 29% |
| Level 3 Communications, LLC - MT | 2 | 29% |
| Qwest Corporation | 1 | 14% |
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 Dillon
A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Dillon. 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 | 596, 660, 683, 865, 925, 960, 988 |
Source: NANPA utilized central office code file.
How local numbers work in Dillon
NANPA ties every exchange to a rate center. For Dillon that is DILLON, so a number from one of these exchanges reads as local to people in and around Dillon.
New local numbers are drawn from carrier inventory, so the exact 406 numbers available change over time; porting an existing number is free.
Who does business near Dillon
Dillon 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.
Business phone service in Dillon
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.
Porting a number you already use in Dillon 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.
A 10-person team is the benchmark here, the rounded average establishment size in Montana. Billed per seat at month-to-month list prices (checked September 28, 2026), RingCentral RingEX Core costs $300.00 a month and Ooma Office Pro $249.50. Callata comes to $199.00 a month for 10 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 | $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 Dillon, MT?
406. All exchanges NANPA lists for Dillon are in 406.
How many phone companies have exchanges in Dillon?
4, holding 7 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Dillon 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 Dillon?
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).