CallataGuidesGet a local business phone number in St. Charles, MI
St. Charles's area code, prefixes and carriers from NANPA records, and how to put a St. Charles number in front of your customers.
- Area code
- 989
- Exchanges
- 3NANPA-assigned
- Carriers
- 2
- Population
- 3,121Census 2024 est.
What area code is St. Charles, MI?
St. Charles township is a Census town in Saginaw County, Michigan, with an estimated 3,121 residents in 2024. All 3 exchanges NANPA lists for its rate center are in area code 989. St. Charles is in the Eastern time zone.
According to NANPA's dialing-plan data, local calls within 989 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 |
|---|---|---|---|---|---|
| 989 | 3 | 100% | 2001 | none | Eastern |
Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.
Phone carriers in St. Charles
2 carriers hold the 3 exchanges assigned to St. Charles's rate center. Onvoy, Llcv - Mi has the most, with 2. 3 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 |
|---|---|---|
| Onvoy, Llcv - Mi | 2 | 67% |
| Michigan Bell Tel CO | 1 | 33% |
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.
Local prefixes for St. Charles
These are the central office codes NANPA records for St. Charles. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2008. 1 of the 3 were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 989 | 447, 504, 865 |
Source: NANPA utilized central office code file.
When St. Charles's exchanges were assigned
The table groups St. Charles's exchanges by the decade NANPA recorded them as assigned.
| Decade assigned | Exchanges | Share |
|---|---|---|
| 2000s | 1 | 50% |
| 2020s | 1 | 50% |
Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.
How local numbers work in St. Charles
NANPA ties every exchange to a rate center. For St. Charles that is ST CHARLES, so a number from one of these exchanges reads as local to people in and around St. Charles.
New local numbers are drawn from carrier inventory, so the exact 989 numbers available change over time; porting an existing number is free.
Who does business near St. Charles
St. Charles is part of the Saginaw, MI metro area, home to 188,000 people in 2024. County Business Patterns counted 4,092 business establishments in the Saginaw, MI metro area in 2023, employing 77,361 people. The largest sectors by establishment count are retail trade (749), health care and social assistance (623), and other services (except public administration) (457).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Limited-service restaurants | 161 | 3,510 | 21.8 |
| Physician practices | 140 | 1,688 | 12.1 |
| Full-service restaurants | 123 | 3,389 | 27.6 |
| Law offices | 67 | 348 | 5.2 |
| Insurance agencies and brokerages | 67 | 369 | 5.5 |
| Dental offices | 63 | 595 | 9.4 |
| Landscaping services | 61 | 290 | 4.8 |
| Residential remodelers | 56 | 180 | 3.2 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
Business phone service in St. Charles
For $99 a month, Callata puts a team of up to 5 on one plan ($20 for each person after that): up to 3 local numbers, unlimited inbound calls, a pooled allowance of 1,500 outbound US and Canada minutes per user, browser and cell calling, voicemail transcription with urgency triage, recorded calls with AI summaries and business-hours routing, with E911 on every number.
Porting a number you already use in St. Charles 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.
A 19-person team is the benchmark here, the rounded average establishment size in the Saginaw, MI metro area. Billed per seat at month-to-month list prices (checked September 28, 2026), RingCentral RingEX Core costs $570.00 a month and Ooma Office Pro $474.05. Callata comes to $379.00 a month for 19 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 | $379.00 | $4,548.00 |
| Quo (Starter) | $19.00 per user | $361.00 | $4,332.00 |
| Nextiva (Core) | $23.00 per user | $437.00 | $5,244.00 |
| Ooma (Office Pro) | $24.95 per user | $474.05 | $5,688.60 |
| Dialpad (Standard) | $27.00 per user | $513.00 | $6,156.00 |
| RingCentral (RingEX Core) | $30.00 per user | $570.00 | $6,840.00 |
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 St. Charles, MI?
989. All exchanges NANPA lists for St. Charles are in 989.
How many phone companies have exchanges in St. Charles?
2, holding 3 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing St. Charles 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 St. Charles?
Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 19 users come to $379.00 a month. For comparison, 19 users on RingCentral RingEX Core list at $570.00 a month (checked September 28, 2026).