Get a local business phone number in Westport, CT
Westport's area codes, prefixes and carriers from NANPA records, and how to put a Westport number in front of your customers.
- Area code
- 203 / 475
- Exchanges
- 20NANPA-assigned
- Carriers
- 11
- Population
- 27,996Census 2024 est.
What area code is Westport, CT?
Westport town is a Census town in Western Connecticut Planning Region, Connecticut, with an estimated 27,996 residents in 2024. NANPA lists 20 exchanges for its rate center across 2 area codes; 203 has the most (16, 80%). 203 is part of an overlay with 475, so a new local number in Westport may carry any of those codes depending on which have numbers available. Westport is in the Eastern time zone.
According to NANPA's dialing-plan data, local calls within 203 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.
Who holds Westport phone exchanges
11 carriers hold the 20 exchanges assigned to Westport's rate center. Southern New England Telco d/b/a Frontier Comm of CT has the most, with 7. 13 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 |
|---|---|---|
| Southern New England Telco d/b/a Frontier Comm of CT | 7 | 35% |
| New Cingular Wireless PCS, LLC - DC | 2 | 10% |
| Mcimetro Access Transmission Services LLC - CT | 2 | 10% |
| Onvoy, LLC - CT | 2 | 10% |
| Teleport Communications America, LLC - CT | 1 | 5.0% |
| Cablevision Lightpath, INC. - CT | 1 | 5.0% |
| AT&T - Local | 1 | 5.0% |
| Level 3 Communications, LLC - CT | 1 | 5.0% |
| Paetec Itel, LLC | 1 | 5.0% |
| Peerless Network of Connecticut, LLC - CT | 1 | 5.0% |
| Ton80 Communications, LLC | 1 | 5.0% |
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 Westport
These are the central office codes NANPA records for Westport. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2016. 2 of the 20 were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 203 | 216, 221, 222, 226, 227, 291, 293, 341, 349, 429, 451, 454, 557, 571, 635, 682 |
| 475 | 363, 471, 666, 887 |
Source: NANPA utilized central office code file.
When Westport's exchanges were assigned
Assignment dates show when each block of Westport 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 Westport
Phone numbers are tied to a rate center, the local calling area used to decide whether a call is local or toll. Westport's numbers are rated to the WESTPORT rate center in NANPA's records. A business number from one of the prefixes above shows up on customers' phones as a Westport number.
New local numbers are drawn from carrier inventory, so the exact 203 numbers available change over time; porting an existing number is free.
Businesses around Westport
Westport is part of the Bridgeport-Stamford-Danbury, CT metro area, home to 973,000 people in 2024. County Business Patterns counted 26,896 business establishments in the Bridgeport, CT metro area in 2023, employing 399,402 people. The largest sectors by establishment count are professional, scientific, and technical services (3,429), health care and social assistance (3,330), and retail trade (3,177).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Full-service restaurants | 1,006 | 16,364 | 16.3 |
| Physician practices | 840 | 11,781 | 14.0 |
| Limited-service restaurants | 796 | 9,544 | 12.0 |
| Landscaping services | 774 | 3,713 | 4.8 |
| Law offices | 607 | 3,369 | 5.6 |
| Dental offices | 511 | 3,910 | 7.7 |
| Residential remodelers | 443 | 1,182 | 2.7 |
| Management consulting firms | 398 | 2,236 | 5.6 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
A Westport 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 Westport, 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 Bridgeport, CT metro area, 15 users on RingCentral RingEX Core come to $450.00 a month and on Ooma Office Pro $374.25, at month-to-month list prices checked September 28, 2026. On Callata the same 15 people cost $299.00 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 | $299.00 | $3,588.00 |
| Quo (Starter) | $19.00 per user | $285.00 | $3,420.00 |
| Nextiva (Core) | $23.00 per user | $345.00 | $4,140.00 |
| Ooma (Office Pro) | $24.95 per user | $374.25 | $4,491.00 |
| Dialpad (Standard) | $27.00 per user | $405.00 | $4,860.00 |
| RingCentral (RingEX Core) | $30.00 per user | $450.00 | $5,400.00 |
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 Westport, CT?
Westport has exchanges in 203 and 475; 203 has the most.
How many phone companies have exchanges in Westport?
11, holding 20 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Westport 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 Westport?
Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 15 users come to $299.00 a month. For comparison, 15 users on RingCentral RingEX Core list at $450.00 a month (checked September 28, 2026).