CallataGuidesGet a local business phone number in Grant, MI
Grant's area code, prefixes and carriers from NANPA records, and how to put a Grant number in front of your customers.
- Area code
- 231
- Exchanges
- 5NANPA-assigned
- Carriers
- 5
- Population
- 3,448Census 2024 est.
Grant area codes
With 3,448 residents in the Census 2024 estimate, Grant sits in Clare County, Michigan. All 5 exchanges NANPA lists for its rate center are in area code 231. Grant is in the Eastern time zone.
According to NANPA's dialing-plan data, local calls within 231 are dialed as seven digits and toll calls as 1 plus ten digits.
| Area code | Exchanges here | Share | In service since | Overlay with | Time zone |
|---|---|---|---|---|---|
| 231 | 5 | 100% | 1999 | none | Eastern |
Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.
Who holds Grant phone exchanges
5 carriers hold the 5 exchanges assigned to Grant's rate center. New Cingular Wireless PCS, LLC - Il has the most, with 1. 4 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. A business number in Grant can come from any of these blocks; once it is yours, porting lets it move between providers.
| Carrier (NANPA operating company) | Exchanges | Share |
|---|---|---|
| New Cingular Wireless PCS, LLC - Il | 1 | 20% |
| Telnet Worldwide, INC. | 1 | 20% |
| Level 3 Communications, LLC - Mi | 1 | 20% |
| Michigan Bell Tel CO | 1 | 20% |
| 123.net, LLC | 1 | 20% |
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.
Grant phone prefixes
These are the central office codes NANPA records for Grant. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2001. None were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 231 | 282, 395, 674, 834, 974 |
Source: NANPA utilized central office code file.
What makes a number local to Grant
What a caller sees as "local" is the area code plus prefix. In Grant, those come from the GRANT rate center, as recorded by NANPA.
If your business already has a Grant number, porting it to Callata is free and keeps it on your cards, listings and vehicles.
The local business market
Grant is outside any Census metro or micropolitan area, so the figures below are statewide. County Business Patterns counted 229,564 business establishments in Michigan in 2023, employing 4,041,074 people. The largest sectors by establishment count are retail trade (32,868), health care and social assistance (28,979), and other services (except public administration) (23,311).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Limited-service restaurants | 7,923 | 143,754 | 18.1 |
| Full-service restaurants | 7,198 | 146,525 | 20.4 |
| Physician practices | 6,412 | 91,402 | 14.3 |
| Residential remodelers | 3,959 | 14,368 | 3.6 |
| Landscaping services | 3,797 | 20,967 | 5.5 |
| Dental offices | 3,795 | 33,989 | 9.0 |
| Law offices | 3,750 | 23,789 | 6.3 |
| Insurance agencies and brokerages | 3,680 | 26,370 | 7.2 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
A Grant 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 Grant 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 Michigan. 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.
| 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 Grant, MI?
231. All exchanges NANPA lists for Grant are in 231.
How many phone companies have exchanges in Grant?
5, holding 5 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Grant 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 Grant?
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).