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Get a local business phone number in Glasgow, MT

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

Area code
406
Exchanges
4NANPA-assigned
Carriers
3
Population
3,169Census 2024 est.

What area code is Glasgow, MT?

Glasgow city is a Census place in Valley County, Montana, with an estimated 3,169 residents in 2024. All 4 exchanges NANPA lists for its rate center are in area code 406. Glasgow 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 Glasgow, MT
Area codeExchanges hereShareIn service sinceOverlay withTime zone
4064100%1947noneMountain

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

Phone carriers in Glasgow

3 carriers hold the 4 exchanges assigned to Glasgow's rate center. Cellco Partnership d/b/a Verizon Wireless - MT has the most, with 2. 3 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. Holding a code means NANPA assigned that block of numbers to the carrier for this rate center; individual numbers may since have been ported elsewhere.

Carriers holding exchanges in Glasgow, MT
Carrier (NANPA operating company)ExchangesShare
Cellco Partnership d/b/a Verizon Wireless - MT250%
Nemont Tel Coop INC125%
Sagebrush Cellular, INC.125%

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 Glasgow

A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Glasgow. The earliest assignment date recorded in the file for these codes is 2009. None were assigned in 2020 or later.

Prefixes assigned in Glasgow, MT
Area codePrefixes (NXX)
406228, 230, 263, 942

Source: NANPA utilized central office code file.

Rate centers and local calling in Glasgow

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

New local numbers are drawn from carrier inventory, so the exact 406 numbers available change over time; porting an existing number is free.

Businesses around Glasgow

Glasgow 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.

Setting up a Glasgow business line

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 Glasgow 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 Glasgow, MT?

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

How many phone companies have exchanges in Glasgow?

3, holding 4 exchanges between them, according to NANPA's 10/01/2026 file.

Can I keep my existing Glasgow 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 Glasgow?

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).