Get a local business phone number in Algonac, MI
Algonac's area code, prefixes and carriers from NANPA records, and how to put a Algonac number in front of your customers.
- Area code
- 810
- Exchanges
- 11NANPA-assigned
- Carriers
- 9
- Population
- 4,111Census 2024 est.
What area code is Algonac, MI?
Algonac, in St. Clair County, Michigan, had a Census-estimated population of 4,111 in July 2024. All 11 exchanges NANPA lists for its rate center are in area code 810. Algonac 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 code | Exchanges here | Share | In service since | Overlay with | Time zone |
|---|---|---|---|---|---|
| 810 | 11 | 100% | 1993 | none | Eastern |
Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.
Algonac exchanges by carrier
9 carriers hold the 11 exchanges assigned to Algonac's rate center. Cellco Partnership d/b/a Verizon Wireless - Mi has the most, with 2. 9 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.
| Carrier (NANPA operating company) | Exchanges | Share |
|---|---|---|
| Cellco Partnership d/b/a Verizon Wireless - Mi | 2 | 18% |
| Michigan Bell Tel CO | 2 | 18% |
| Boost Subscriberco L.l.c. | 1 | 9.1% |
| New Cingular Wireless PCS, LLC - Il | 1 | 9.1% |
| 123.net, LLC | 1 | 9.1% |
| Omnipoint Communications Midwest Operations, LLC | 1 | 9.1% |
| Teleport Communications America, LLC - Mi | 1 | 9.1% |
| Mcimetro Access Transmission Services LLC - Mi | 1 | 9.1% |
| Telnet Worldwide, INC. | 1 | 9.1% |
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.
Algonac phone prefixes
A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Algonac. The earliest assignment date recorded in the file for these codes is 2001. 1 of the 11 were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 810 | 278, 303, 335, 512, 580, 671, 734, 748, 794, 821, 857 |
Source: NANPA utilized central office code file.
When Algonac's exchanges were assigned
Assignment dates show when each block of Algonac numbers was added to the local supply.
| Decade assigned | Exchanges | Share |
|---|---|---|
| 2000s | 4 | 80% |
| 2020s | 1 | 20% |
Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.
Rate centers and local calling in Algonac
What a caller sees as "local" is the area code plus prefix. In Algonac, those come from the ALGONAC rate center, as recorded by NANPA.
New local numbers are drawn from carrier inventory, so the exact 810 numbers available change over time; porting an existing number is free.
Who does business near Algonac
Algonac 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).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Limited-service restaurants | 3,764 | 63,821 | 17.0 |
| Physician practices | 3,622 | 45,657 | 12.6 |
| Full-service restaurants | 3,191 | 65,669 | 20.6 |
| Law offices | 2,130 | 15,565 | 7.3 |
| Dental offices | 1,921 | 16,127 | 8.4 |
| Landscaping services | 1,711 | 8,261 | 4.8 |
| Residential remodelers | 1,621 | 5,924 | 3.7 |
| Insurance agencies and brokerages | 1,520 | 11,569 | 7.6 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
A Algonac 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.
If you already have a number in Algonac, 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.
Per-seat phone plans multiply by headcount. For the rounded average establishment size in the Detroit, MI metro 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. On Callata the same 18 people cost $359.00 a month, less than either per-seat plan.
| Provider (plan) | Pricing basis | Per month | Per 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 Algonac, MI?
810. All exchanges NANPA lists for Algonac are in 810.
How many phone companies have exchanges in Algonac?
9, holding 11 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Algonac 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 Algonac?
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).