CallataGuidesGet a local business phone number in Windsor, MO
Windsor's area code, prefixes and carriers from NANPA records, and how to put a Windsor number in front of your customers.
- Area code
- 660
- Exchanges
- 2NANPA-assigned
- Carriers
- 2
- Population
- 3,431Census 2024 est.
What area code is Windsor, MO?
With 3,431 residents in the Census 2024 estimate, Windsor sits in Henry County, Missouri. All 2 exchanges NANPA lists for its rate center are in area code 660. Windsor is in the Central time zone.
According to NANPA's dialing-plan data, local calls within 660 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 |
|---|---|---|---|---|---|
| 660 | 2 | 100% | 1997 | none | Central |
Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.
Who holds Windsor phone exchanges
2 carriers hold the 2 exchanges assigned to Windsor's rate center. Embarq Missouri, INC. d/b/a Centurylink - Mo has the most, with 1. 2 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. A business number in Windsor can come from any of these blocks; once it is yours, porting lets it move between providers.
| Carrier (NANPA operating company) | Exchanges | Share |
|---|---|---|
| Embarq Missouri, INC. d/b/a Centurylink - Mo | 1 | 50% |
| Onvoy, LLC - Mo | 1 | 50% |
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 Windsor
A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Windsor. None were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 660 | 647, 987 |
Source: NANPA utilized central office code file.
What makes a number local to Windsor
NANPA ties every exchange to a rate center. For Windsor that is WINDSOR, so a number from one of these exchanges reads as local to people in and around Windsor.
If your business already has a Windsor number, porting it to Callata is free and keeps it on your cards, listings and vehicles.
Businesses around Windsor
Windsor is outside any Census metro or micropolitan area, so the figures below are statewide. County Business Patterns counted 151,475 business establishments in Missouri in 2023, employing 2,631,543 people. The largest sectors by establishment count are health care and social assistance (20,637), retail trade (19,971), and other services (except public administration) (15,950).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Limited-service restaurants | 4,814 | 98,624 | 20.5 |
| Full-service restaurants | 4,522 | 101,104 | 22.4 |
| Agencies providing services for the elderly and persons with disabilities | 3,454 | 29,360 | 8.5 |
| Insurance agencies and brokerages | 3,330 | 19,059 | 5.7 |
| Physician practices | 3,042 | 40,939 | 13.5 |
| Law offices | 2,759 | 18,479 | 6.7 |
| Offices of real estate agents and brokers | 2,550 | 6,531 | 2.6 |
| Landscaping services | 2,199 | 13,201 | 6.0 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
A Windsor number on Callata
Callata is a business phone system priced at $99 a month with 5 users included, then $20 per additional user. Callata Office includes up to 3 local business numbers, unlimited inbound calling, 1,500 pooled outbound US and Canada minutes per user each month, a browser softphone that can also ring your cell, voicemail with transcription, call recording with AI summaries, business-hours routing and E911 on every number.
If you already have a number in Windsor, 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 Missouri, 17 users on RingCentral RingEX Core come to $510.00 a month and on Ooma Office Pro $424.15, at month-to-month list prices checked September 28, 2026. On Callata the same 17 people cost $339.00 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 | $339.00 | $4,068.00 |
| Quo (Starter) | $19.00 per user | $323.00 | $3,876.00 |
| Nextiva (Core) | $23.00 per user | $391.00 | $4,692.00 |
| Ooma (Office Pro) | $24.95 per user | $424.15 | $5,089.80 |
| Dialpad (Standard) | $27.00 per user | $459.00 | $5,508.00 |
| RingCentral (RingEX Core) | $30.00 per user | $510.00 | $6,120.00 |
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 Windsor, MO?
660. All exchanges NANPA lists for Windsor are in 660.
How many phone companies have exchanges in Windsor?
2, holding 2 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Windsor 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 Windsor?
Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 17 users come to $339.00 a month. For comparison, 17 users on RingCentral RingEX Core list at $510.00 a month (checked September 28, 2026).