Get a local business phone number in New Windsor, MD
New Windsor's area codes, prefixes and carriers from NANPA records, and how to put a New Windsor number in front of your customers.
- Area code
- 443 / 667 / 410
- Exchanges
- 7NANPA-assigned
- Carriers
- 6
- Population
- 1,758Census 2024 est.
What area code is New Windsor, MD?
New Windsor, in Carroll County, Maryland, had a Census-estimated population of 1,758 in July 2024. NANPA lists 7 exchanges for its rate center across 3 area codes; 443 has the most (3, 43%). 443 is part of an overlay with 410 and 667, so a new local number in New Windsor may carry any of those codes depending on which have numbers available. New Windsor is in the Eastern time zone.
According to NANPA's dialing-plan data, local calls within 443 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.
Who holds New Windsor phone exchanges
6 carriers hold the 7 exchanges assigned to New Windsor's rate center. Bandwidth.com CLEC, LLC - MD has the most, with 2. 7 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. The table counts codes by the operating company NANPA assigned them to, not by who serves each number today.
| Carrier (NANPA operating company) | Exchanges | Share |
|---|---|---|
| Bandwidth.com CLEC, LLC - MD | 2 | 29% |
| Verizon Maryland, INC. | 1 | 14% |
| Paetec Itel, LLC | 1 | 14% |
| Teleport Communications America, LLC - MD | 1 | 14% |
| Core Communications, Inc.- MD | 1 | 14% |
| Onvoy, LLC - MD | 1 | 14% |
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 New Windsor
A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to New Windsor. The earliest assignment date recorded in the file for these codes is 2011. 2 of the 7 were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 410 | 635 |
| 443 | 647, 671, 892 |
| 667 | 332, 394, 966 |
Source: NANPA utilized central office code file.
When New Windsor's exchanges were assigned
Assignment dates show when each block of New Windsor numbers was added to the local supply.
| Decade assigned | Exchanges | Share |
|---|---|---|
| 2010s | 2 | 50% |
| 2020s | 2 | 50% |
Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.
What makes a number local to New Windsor
Phone numbers are tied to a rate center, the local calling area used to decide whether a call is local or toll. New Windsor's numbers are rated to the NEWWINDSOR rate center in NANPA's records. A business number from one of the prefixes above shows up on customers' phones as a New Windsor number.
New local numbers are drawn from carrier inventory, so the exact 443 numbers available change over time; porting an existing number is free.
Businesses around New Windsor
New Windsor is part of the Baltimore-Columbia-Towson, MD metro area, home to 2.9 million people in 2024. County Business Patterns counted 68,827 business establishments in the Baltimore, MD metro area in 2023, employing 1,220,618 people. The largest sectors by establishment count are professional, scientific, and technical services (10,516), health care and social assistance (9,016), and retail trade (8,034).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Limited-service restaurants | 2,688 | 41,793 | 15.5 |
| Full-service restaurants | 1,791 | 47,025 | 26.3 |
| Physician practices | 1,634 | 24,351 | 14.9 |
| Residential remodelers | 1,483 | 5,685 | 3.8 |
| Law offices | 1,403 | 10,079 | 7.2 |
| Offices of real estate agents and brokers | 1,130 | 2,964 | 2.6 |
| Computer systems design services firms | 1,105 | 18,324 | 16.6 |
| Dental offices | 1,102 | 8,559 | 7.8 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
A New Windsor number on Callata
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.
If you already have a number in New 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.
An 18-person team is the benchmark here, the rounded average establishment size in the Baltimore, MD metro area. Billed per seat at month-to-month list prices (checked September 28, 2026), RingCentral RingEX Core costs $540.00 a month and Ooma Office Pro $449.10. 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 New Windsor, MD?
New Windsor has exchanges in 443, 667, and 410; 443 has the most.
How many phone companies have exchanges in New Windsor?
6, holding 7 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing New 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 New Windsor?
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).