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Get a local business phone number in Mount Pleasant, MI

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

Area code
989
Exchanges
27NANPA-assigned
Carriers
12
Population
21,090Census 2024 est.

Mount Pleasant area codes

Mount Pleasant, in Isabella County, Michigan, had a Census-estimated population of 21,090 in July 2024. All 27 exchanges NANPA lists for its rate center are in area code 989. Mount Pleasant is in the Eastern time zone.

According to NANPA's dialing-plan data, local calls within 989 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Area codes with exchanges in Mount Pleasant, MI
Area codeExchanges hereShareIn service sinceOverlay withTime zone
98927100%2001noneEastern

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

Mount Pleasant exchanges by carrier

12 carriers hold the 27 exchanges assigned to Mount Pleasant's rate center. Frontier North, INC. - Mi has the most, with 6. 15 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.

Carriers holding exchanges in Mount Pleasant, MI
Carrier (NANPA operating company)ExchangesShare
Frontier North, INC. - Mi622%
Cellco Partnership d/b/a Verizon Wireless - Mi519%
New Cingular Wireless PCS, LLC - Il415%
Omnipoint Communications Midwest Operations, LLC311%
Winn Telephone Company d/b/a Winn Telecom - Mi27.4%
Level 3 Communications, LLC - Mi13.7%
Daystarr LLC d/b/a Daystarr Communications13.7%
American Messaging Services, LLC13.7%
Twilio International, INC.13.7%
Metropcs, INC.13.7%
Telnet Worldwide, INC.13.7%
Ton80 Communications, LLC13.7%

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 Mount Pleasant

These are the central office codes NANPA records for Mount Pleasant. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2001. 4 of the 27 were assigned in 2020 or later.

Prefixes assigned in Mount Pleasant, MI
Area codePrefixes (NXX)
989289, 317, 330, 400, 408, 444, 506, 546, 560, 572, 612, 621, 772, 773, 774, 775, 779, 815, 817, 824, 854, 933, 944, 953, 954, 956, 969

Source: NANPA utilized central office code file.

When Mount Pleasant's exchanges were assigned

The table groups Mount Pleasant's exchanges by the decade NANPA recorded them as assigned.

Mount Pleasant, MI: exchanges by decade assigned
Decade assignedExchangesShare
2000s660%
2020s440%

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

Rate centers and local calling in Mount Pleasant

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

Keeping an existing Mount Pleasant number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 989 when you pick it.

Businesses around Mount Pleasant

Mount Pleasant is part of the Mount Pleasant, MI micropolitan area, home to 65,072 people in 2024. County Business Patterns counted 1,423 business establishments in the Mount Pleasant, MI micropolitan area in 2023, employing 25,575 people. The largest sectors by establishment count are retail trade (221), health care and social assistance (214), and accommodation and food services (165).

Selected industries in the Mount Pleasant, MI micropolitan area, 2023
IndustryEstablishmentsEmployeesEmployees per establishment
Physician practices573946.9
Full-service restaurants531,31924.9
Limited-service restaurants471,15624.6
Dental offices201839.2
Landscaping services19——
Insurance agencies and brokerages181116.2
Plumbing, heating and air-conditioning contractors181548.6
Offices of real estate agents and brokers17221.3

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

A Mount Pleasant number on Callata

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 Mount Pleasant 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 the Mount Pleasant, MI micropolitan area, 18 users on RingCentral RingEX Core come to $540.00 a month and on Ooma Office Pro $449.10, at month-to-month list prices checked September 28, 2026. Callata comes to $359.00 a month for 18 users ($99 a month with 5 users included, then $20 per additional user), below both.

Monthly list price for an 18-person team
Provider (plan)Pricing basisPer monthPer year
Callata (Callata Office)$99 incl. 5 users, $20 per extra user$359.00$4,308.00
Quo (Starter)$19.00 per user$342.00$4,104.00
Nextiva (Core)$23.00 per user$414.00$4,968.00
Ooma (Office Pro)$24.95 per user$449.10$5,389.20
Dialpad (Standard)$27.00 per user$486.00$5,832.00
RingCentral (RingEX Core)$30.00 per user$540.00$6,480.00

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 Mount Pleasant, MI?

989. All exchanges NANPA lists for Mount Pleasant are in 989.

How many phone companies have exchanges in Mount Pleasant?

12, holding 27 exchanges between them, according to NANPA's 10/01/2026 file.

Can I keep my existing Mount Pleasant 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 Mount Pleasant?

Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 18 users come to $359.00 a month. For comparison, 18 users on RingCentral RingEX Core list at $540.00 a month (checked September 28, 2026).