CallataGuides

Get a local business phone number in Port Huron, MI

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

Area code
810
Exchanges
44NANPA-assigned
Carriers
15
Population
28,342Census 2024 est.

Port Huron area codes

Port Huron, in St. Clair County, Michigan, had a Census-estimated population of 28,342 in July 2024. All 44 exchanges NANPA lists for its rate center are in area code 810. Port Huron 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 Port Huron, MI
Area codeExchanges hereShareIn service sinceOverlay withTime zone
81044100%1993noneEastern

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

Port Huron exchanges by carrier

15 carriers hold the 44 exchanges assigned to Port Huron's rate center. Michigan Bell Tel CO has the most, with 10. 31 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 Port Huron, MI
Carrier (NANPA operating company)ExchangesShare
Michigan Bell Tel CO1023%
New Cingular Wireless PCS, LLC - Il511%
Omnipoint Communications Midwest Operations, LLC511%
Cellco Partnership d/b/a Verizon Wireless - Mi36.8%
Bandwidth.com CLEC, LLC - Mi36.8%
Teleport Communications America, LLC - Mi36.8%
Mcimetro Access Transmission Services LLC - Mi36.8%
Onvoy, Llcv - Mi24.5%
American Messaging Services, LLC24.5%
Level 3 Communications, LLC - Mi24.5%
Paetec Itel, LLC24.5%
Telnet Worldwide, INC.12.3%

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 Port Huron

These are the central office codes NANPA records for Port Huron. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2001. 5 of the 44 were assigned in 2020 or later.

Prefixes assigned in Port Huron, MI
Area codePrefixes (NXX)
810204, 205, 216, 218, 242, 276, 292, 294, 300, 314, 320, 334, 340, 357, 363, 364, 372, 385, 388, 432, 434, 455, 479, 488, 531, 650, 662, 689, 824, 841, 858, 887, 937, 941, 956, 958, 966, 971, 982, 984, 985, 987, 989, 990

Source: NANPA utilized central office code file.

When Port Huron's exchanges were assigned

The table groups Port Huron's exchanges by the decade NANPA recorded them as assigned.

Port Huron, MI: exchanges by decade assigned
Decade assignedExchangesShare
2000s633%
2010s739%
2020s528%

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

Rate centers and local calling in Port Huron

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

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

Businesses around Port Huron

Port Huron is part of the Detroit-Warren-Dearborn, MI metro area, home to 4.4 million people in 2024. County Business Patterns counted 102,430 business establishments in the Detroit, MI metro area in 2023, employing 1,846,717 people. The largest sectors by establishment count are retail trade (14,016), health care and social assistance (13,890), and professional, scientific, and technical services (11,783).

Selected industries in the Detroit, MI metro area, 2023
IndustryEstablishmentsEmployeesEmployees per establishment
Limited-service restaurants3,76463,82117.0
Physician practices3,62245,65712.6
Full-service restaurants3,19165,66920.6
Law offices2,13015,5657.3
Dental offices1,92116,1278.4
Landscaping services1,7118,2614.8
Residential remodelers1,6215,9243.7
Insurance agencies and brokerages1,52011,5697.6

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

A Port Huron number on Callata

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.

Porting a number you already use in Port Huron 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.

The comparison below uses 18 users, the rounded average establishment size in the Detroit, MI metro area. At list prices checked September 28, 2026, that is $449.10 a month on Ooma Office Pro and $540.00 on RingCentral RingEX Core. 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 Port Huron, MI?

810. All exchanges NANPA lists for Port Huron are in 810.

How many phone companies have exchanges in Port Huron?

15, holding 44 exchanges between them, according to NANPA's 10/01/2026 file.

Can I keep my existing Port Huron 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 Port Huron?

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).