Get a local business phone number in Cadillac, MI
Cadillac's area code, prefixes and carriers from NANPA records, and how to put a Cadillac number in front of your customers.
- Area code
- 231
- Exchanges
- 21NANPA-assigned
- Carriers
- 11
- Population
- 10,521Census 2024 est.
What area code is Cadillac, MI?
Cadillac city is a Census place in Wexford County, Michigan, with an estimated 10,521 residents in 2024. All 21 exchanges NANPA lists for its rate center are in area code 231. Cadillac 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 | 21 | 100% | 1999 | none | Eastern |
Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.
Cadillac exchanges by carrier
11 carriers hold the 21 exchanges assigned to Cadillac's rate center. Omnipoint Communications Midwest Operations, LLC has the most, with 4. 12 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. A business number in Cadillac can come from any of these blocks; once it is yours, porting lets it move between providers.
| Carrier (NANPA operating company) | Exchanges | Share |
|---|---|---|
| Omnipoint Communications Midwest Operations, LLC | 4 | 19% |
| New Cingular Wireless PCS, LLC - Il | 3 | 14% |
| Cellco Partnership d/b/a Verizon Wireless - Mi | 3 | 14% |
| Michigan Bell Tel CO | 3 | 14% |
| Onvoy, Llcv - Mi | 2 | 9.5% |
| Telnet Worldwide, INC. | 1 | 4.8% |
| American Messaging Services, LLC | 1 | 4.8% |
| Level 3 Communications, LLC - Mi | 1 | 4.8% |
| Spok, INC. | 1 | 4.8% |
| 123.net, LLC | 1 | 4.8% |
| Bandwidth.com CLEC, LLC - Mi | 1 | 4.8% |
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.
Cadillac phone prefixes
Each prefix below is a block of up to 10,000 numbers that NANPA assigned to Cadillac's rate center (CADILLAC). The earliest assignment date recorded in the file for these codes is 2001. 4 of the 21 were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 231 | 253, 281, 285, 306, 396, 429, 444, 468, 514, 577, 593, 775, 779, 842, 846, 876, 878, 884, 920, 942, 968 |
Source: NANPA utilized central office code file.
When Cadillac's exchanges were assigned
Assignment dates show when each block of Cadillac numbers was added to the local supply.
| Decade assigned | Exchanges | Share |
|---|---|---|
| 2000s | 6 | 50% |
| 2010s | 2 | 17% |
| 2020s | 4 | 33% |
Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.
What makes a number local to Cadillac
NANPA ties every exchange to a rate center. For Cadillac that is CADILLAC, so a number from one of these exchanges reads as local to people in and around Cadillac.
Keeping an existing Cadillac number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 231 when you pick it.
Businesses around Cadillac
Cadillac is part of the Cadillac, MI micropolitan area, home to 49,699 people in 2024. County Business Patterns counted 1,218 business establishments in the Cadillac, MI micropolitan area in 2023, employing 16,033 people. The largest sectors by establishment count are retail trade (208), health care and social assistance (140), and other services (except public administration) (126).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Full-service restaurants | 36 | 567 | 15.8 |
| Limited-service restaurants | 34 | 534 | 15.7 |
| Residential remodelers | 26 | — | — |
| New single-family housing construction contractors | 21 | 51 | 2.4 |
| General automotive repair shops | 21 | 135 | 6.4 |
| Insurance agencies and brokerages | 20 | 165 | 8.3 |
| Child day care services | 15 | 114 | 7.6 |
| Dental offices | 14 | 163 | 11.6 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
Business phone service in Cadillac
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 Cadillac, 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 Cadillac, MI micropolitan area, 13 users on RingCentral RingEX Core come to $390.00 a month and on Ooma Office Pro $324.35, at month-to-month list prices checked September 28, 2026. On Callata the same 13 people cost $259.00 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 | $259.00 | $3,108.00 |
| Quo (Starter) | $19.00 per user | $247.00 | $2,964.00 |
| Nextiva (Core) | $23.00 per user | $299.00 | $3,588.00 |
| Ooma (Office Pro) | $24.95 per user | $324.35 | $3,892.20 |
| Dialpad (Standard) | $27.00 per user | $351.00 | $4,212.00 |
| RingCentral (RingEX Core) | $30.00 per user | $390.00 | $4,680.00 |
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 Cadillac, MI?
231. All exchanges NANPA lists for Cadillac are in 231.
How many phone companies have exchanges in Cadillac?
11, holding 21 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Cadillac 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 Cadillac?
Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 13 users come to $259.00 a month. For comparison, 13 users on RingCentral RingEX Core list at $390.00 a month (checked September 28, 2026).