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Get a local business phone number in Montrose, MI

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

Area code
810
Exchanges
6NANPA-assigned
Carriers
5
Population
5,943Census 2024 est.

Area codes in Montrose

Montrose charter township is a Census town in Genesee County, Michigan, with an estimated 5,943 residents in 2024. All 6 exchanges NANPA lists for its rate center are in area code 810. Montrose is in the Eastern time zone.

According to NANPA's dialing-plan data, local calls within 810 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Area codes with exchanges in Montrose, MI
Area codeExchanges hereShareIn service sinceOverlay withTime zone
8106100%1993noneEastern

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

Phone carriers in Montrose

5 carriers hold the 6 exchanges assigned to Montrose's rate center. Cellco Partnership d/b/a Verizon Wireless - Mi has the most, with 2. 3 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. A business number in Montrose can come from any of these blocks; once it is yours, porting lets it move between providers.

Carriers holding exchanges in Montrose, MI
Carrier (NANPA operating company)ExchangesShare
Cellco Partnership d/b/a Verizon Wireless - Mi233%
Comcast Ip Phone, LLC117%
Brightspeed of Central Michigan, INC117%
Onvoy, Llcv - Mi117%
Telnet Worldwide, INC.117%

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.

Exchanges (NPA-NXX) assigned in Montrose

A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Montrose. The earliest assignment date recorded in the file for these codes is 2004. 1 of the 6 were assigned in 2020 or later.

Prefixes assigned in Montrose, MI
Area codePrefixes (NXX)
810247, 350, 405, 639, 818, 988

Source: NANPA utilized central office code file.

When Montrose's exchanges were assigned

Assignment dates show when each block of Montrose numbers was added to the local supply.

Montrose, MI: exchanges by decade assigned
Decade assignedExchangesShare
2000s360%
2010s120%
2020s120%

Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.

How local numbers work in Montrose

What a caller sees as "local" is the area code plus prefix. In Montrose, those come from the MONTROSE rate center, as recorded by NANPA.

Keeping an existing Montrose number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 810 when you pick it.

The local business market

Montrose is part of the Flint, MI metro area, home to 402,000 people in 2024. County Business Patterns counted 7,733 business establishments in the Flint, MI metro area in 2023, employing 121,033 people. The largest sectors by establishment count are health care and social assistance (1,353), retail trade (1,276), and other services (except public administration) (813).

Selected industries in the Flint, MI metro area, 2023
IndustryEstablishmentsEmployeesEmployees per establishment
Physician practices3783,4379.1
Limited-service restaurants3227,17722.3
Full-service restaurants2255,23123.2
Dental offices1471,52610.4
Landscaping services1338016.0
Law offices1314903.7
Insurance agencies and brokerages1265924.7
Residential remodelers1094303.9

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

Business phone service in Montrose

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 Montrose, 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.

The comparison below uses 16 users, the rounded average establishment size in the Flint, MI metro area. At list prices checked September 28, 2026, that is $399.20 a month on Ooma Office Pro and $480.00 on RingCentral RingEX Core. On Callata the same 16 people cost $319.00 a month, less than either per-seat plan.

Monthly list price for a 16-person team
Provider (plan)Pricing basisPer monthPer year
Callata (Callata Office)$99 incl. 5 users, $20 per extra user$319.00$3,828.00
Quo (Starter)$19.00 per user$304.00$3,648.00
Nextiva (Core)$23.00 per user$368.00$4,416.00
Ooma (Office Pro)$24.95 per user$399.20$4,790.40
Dialpad (Standard)$27.00 per user$432.00$5,184.00
RingCentral (RingEX Core)$30.00 per user$480.00$5,760.00

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 Montrose, MI?

810. All exchanges NANPA lists for Montrose are in 810.

How many phone companies have exchanges in Montrose?

5, holding 6 exchanges between them, according to NANPA's 10/01/2026 file.

Can I keep my existing Montrose 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 Montrose?

Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 16 users come to $319.00 a month. For comparison, 16 users on RingCentral RingEX Core list at $480.00 a month (checked September 28, 2026).