CallataGuidesGet a local business phone number in Havre, MT
Havre's area code, prefixes and carriers from NANPA records, and how to put a Havre number in front of your customers.
- Area code
- 406
- Exchanges
- 7NANPA-assigned
- Carriers
- 5
- Population
- 9,204Census 2024 est.
What area code is Havre, MT?
With 9,204 residents in the Census 2024 estimate, Havre sits in Hill County, Montana. All 7 exchanges NANPA lists for its rate center are in area code 406. Havre 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 Havre
5 carriers hold the 7 exchanges assigned to Havre's rate center. Qwest Corporation has the most, with 2. 6 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. A business number in Havre can come from any of these blocks; once it is yours, porting lets it move between providers.
| Carrier (NANPA operating company) | Exchanges | Share |
|---|---|---|
| Qwest Corporation | 2 | 29% |
| New Cingular Wireless PCS, LLC | 2 | 29% |
| Cellco Partnership d/b/a Verizon Wireless - MT | 1 | 14% |
| Triangle Communication System, INC. - Mt- | 1 | 14% |
| Centurylink Communications, LLC | 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 Havre
These are the central office codes NANPA records for Havre. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2009. None were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 406 | 262, 265, 344, 400, 808, 879, 945 |
Source: NANPA utilized central office code file.
When Havre's exchanges were assigned
The table groups Havre's exchanges by the decade NANPA recorded them as assigned.
| 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 Havre
Phone numbers are tied to a rate center, the local calling area used to decide whether a call is local or toll. Havre's numbers are rated to the HAVRE rate center in NANPA's records. A business number from one of the prefixes above shows up on customers' phones as a Havre number.
Keeping an existing Havre number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 406 when you pick it.
Who does business near Havre
Havre 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 Havre
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 Havre 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 Havre, MT?
406. All exchanges NANPA lists for Havre are in 406.
How many phone companies have exchanges in Havre?
5, holding 7 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Havre 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 Havre?
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).