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Get a local business phone number in Lewistown, MT

Lewistown's area code, prefixes and carriers from NANPA records, and how to put a Lewistown number in front of your customers.

Area code
406
Exchanges
8NANPA-assigned
Carriers
7
Population
6,204Census 2024 est.

Area codes in Lewistown

Lewistown, in Fergus County, Montana, had a Census-estimated population of 6,204 in July 2024. All 8 exchanges NANPA lists for its rate center are in area code 406. Lewistown 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 codes with exchanges in Lewistown, MT
Area codeExchanges hereShareIn service sinceOverlay withTime zone
4068100%1947noneMountain

Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.

Phone carriers in Lewistown

7 carriers hold the 8 exchanges assigned to Lewistown's rate center. Cellco Partnership d/b/a Verizon Wireless - MT has the most, with 2. 7 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. A business number in Lewistown can come from any of these blocks; once it is yours, porting lets it move between providers.

Carriers holding exchanges in Lewistown, MT
Carrier (NANPA operating company)ExchangesShare
Cellco Partnership d/b/a Verizon Wireless - MT225%
New Cingular Wireless PCS, LLC113%
Mid-rivers Telephone Cooperative, INC.113%
Qwest Corporation113%
Terra Nova Telecom INC.113%
Wide Voice, LLC - MT113%
HD Carrier LLC113%

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 Lewistown

These are the central office codes NANPA records for Lewistown. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2003. None were assigned in 2020 or later.

Prefixes assigned in Lewistown, MT
Area codePrefixes (NXX)
406350, 366, 380, 535, 538, 707, 708, 968

Source: NANPA utilized central office code file.

What makes a number local to Lewistown

NANPA ties every exchange to a rate center. For Lewistown that is LEWISTOWN, so a number from one of these exchanges reads as local to people in and around Lewistown.

Keeping an existing Lewistown number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 406 when you pick it.

The local business market

Lewistown 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).

Selected industries in Montana, 2023
IndustryEstablishmentsEmployeesEmployees per establishment
Offices of real estate agents and brokers1,100——
New single-family housing construction contractors1,0753,3753.1
Full-service restaurants1,06020,16219.0
Residential remodelers8402,1222.5
Limited-service restaurants80615,35219.0
Plumbing, heating and air-conditioning contractors7124,4486.2
Landscaping services6942,4353.5
Law offices6782,6733.9

Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.

Business phone service in Lewistown

For $99 a month, Callata puts a team of up to 5 on one plan ($20 for each person after that): up to 3 local numbers, unlimited inbound calls, a pooled allowance of 1,500 outbound US and Canada minutes per user, browser and cell calling, voicemail transcription with urgency triage, recorded calls with AI summaries and business-hours routing, with E911 on every number.

Porting a number you already use in Lewistown 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.

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. Callata comes to $199.00 a month for 10 users ($99 a month with 5 users included, then $20 per additional user), below both.

Monthly list price for a 10-person team
Provider (plan)Pricing basisPer monthPer 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 Lewistown, MT?

406. All exchanges NANPA lists for Lewistown are in 406.

How many phone companies have exchanges in Lewistown?

7, holding 8 exchanges between them, according to NANPA's 10/01/2026 file.

Can I keep my existing Lewistown 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 Lewistown?

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).