CallataGuidesGet a local business phone number in Central Lake, MI
Central Lake's area code, prefixes and carriers from NANPA records, and how to put a Central Lake number in front of your customers.
- Area code
- 231
- Exchanges
- 4NANPA-assigned
- Carriers
- 4
- Population
- 2,261Census 2024 est.
What area code is Central Lake, MI?
Central Lake township is a Census town in Antrim County, Michigan, with an estimated 2,261 residents in 2024. All 4 exchanges NANPA lists for its rate center are in area code 231. Central Lake 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 | 4 | 100% | 1999 | none | Eastern |
Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.
Central Lake exchanges by carrier
4 carriers hold the 4 exchanges assigned to Central Lake's rate center. Telnet Worldwide, INC. has the most, with 1. 2 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. Holding a code means NANPA assigned that block of numbers to the carrier for this rate center; individual numbers may since have been ported elsewhere.
| Carrier (NANPA operating company) | Exchanges | Share |
|---|---|---|
| Telnet Worldwide, INC. | 1 | 25% |
| Frontier North, INC. - Mi | 1 | 25% |
| 123.net, LLC | 1 | 25% |
| Onvoy, Llcv - Mi | 1 | 25% |
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.
Central Lake phone prefixes
A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Central Lake. The earliest assignment date recorded in the file for these codes is 2002. None were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 231 | 358, 544, 808, 999 |
Source: NANPA utilized central office code file.
When Central Lake's exchanges were assigned
Assignment dates show when each block of Central Lake numbers was added to the local supply.
| Decade assigned | Exchanges | Share |
|---|---|---|
| 2000s | 1 | 50% |
| 2010s | 1 | 50% |
Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.
Rate centers and local calling in Central Lake
Phone numbers are tied to a rate center, the local calling area used to decide whether a call is local or toll. Central Lake's numbers are rated to the CENTRAL LK rate center in NANPA's records. A business number from one of the prefixes above shows up on customers' phones as a Central Lake number.
If your business already has a Central Lake number, porting it to Callata is free and keeps it on your cards, listings and vehicles.
Who does business near Central Lake
Central Lake 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 Central Lake 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 Central Lake, 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 Michigan, 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 Central Lake, MI?
231. All exchanges NANPA lists for Central Lake are in 231.
How many phone companies have exchanges in Central Lake?
4, holding 4 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Central Lake 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 Central Lake?
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).