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Get a local business phone number in Naugatuck, CT

Naugatuck's area codes, prefixes and carriers from NANPA records, and how to put a Naugatuck number in front of your customers.

Area code
203 / 475
Exchanges
11NANPA-assigned
Carriers
8
Population
32,116Census 2024 est.

What area code is Naugatuck, CT?

Naugatuck borough is a Census place in Naugatuck Valley Planning Region, Connecticut, with an estimated 32,116 residents in 2024. NANPA lists 11 exchanges for its rate center across 2 area codes; 203 has the most (6, 55%). 203 is part of an overlay with 475, so a new local number in Naugatuck may carry any of those codes depending on which have numbers available. Naugatuck 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.

Area codes with exchanges in Naugatuck, CT
Area codeExchanges hereShareIn service sinceOverlay withTime zone
203655%1947475Eastern
475545%2009203Eastern

Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.

Phone carriers in Naugatuck

8 carriers hold the 11 exchanges assigned to Naugatuck's rate center. Southern New England Telco d/b/a Frontier Comm of CT has the most, with 3. 10 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. A business number in Naugatuck can come from any of these blocks; once it is yours, porting lets it move between providers.

Carriers holding exchanges in Naugatuck, CT
Carrier (NANPA operating company)ExchangesShare
Southern New England Telco d/b/a Frontier Comm of CT327%
Peerless Network of Connecticut, LLC - CT218%
Teleport Communications America, LLC - CT19.1%
Paetec Itel, LLC19.1%
Onvoy Spectrum, LLC19.1%
Bandwidth.com CLEC, LLC - CT19.1%
Omnipoint Communications, INC. - CT19.1%
Ton80 Communications, LLC19.1%

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 Naugatuck

Each prefix below is a block of up to 10,000 numbers that NANPA assigned to Naugatuck's rate center (NAUGATUCK). The earliest assignment date recorded in the file for these codes is 2012. 3 of the 11 were assigned in 2020 or later.

Prefixes assigned in Naugatuck, CT
Area codePrefixes (NXX)
203490, 632, 714, 720, 723, 729
475212, 285, 406, 701, 763

Source: NANPA utilized central office code file.

When Naugatuck's exchanges were assigned

The table groups Naugatuck's exchanges by the decade NANPA recorded them as assigned.

Naugatuck, CT: exchanges by decade assigned
Decade assignedExchangesShare
2010s240%
2020s360%

Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.

Rate centers and local calling in Naugatuck

What a caller sees as "local" is the area code plus prefix. In Naugatuck, those come from the NAUGATUCK rate center, as recorded by NANPA.

If your business already has a Naugatuck number, porting it to Callata is free and keeps it on your cards, listings and vehicles.

Businesses around Naugatuck

Naugatuck is part of the Waterbury-Shelton, CT metro area, home to 462,000 people in 2024. County Business Patterns counted 9,114 business establishments in the Waterbury, CT metro area in 2023, employing 145,193 people. The largest sectors by establishment count are health care and social assistance (1,337), retail trade (1,237), and construction (1,039).

Selected industries in the Waterbury, CT metro area, 2023
IndustryEstablishmentsEmployeesEmployees per establishment
Full-service restaurants3454,66013.5
Limited-service restaurants3324,42813.3
Physician practices2612,99611.5
Landscaping services2005572.8
Law offices1889254.9
Plumbing, heating and air-conditioning contractors1801,4037.8
Electrical contractors1781,5959.0
Dental offices1631,3728.4

Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.

Setting up a Naugatuck business line

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.

Porting a number you already use in Naugatuck 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.

The comparison below uses 16 users, the rounded average establishment size in the Waterbury, CT metro area. At list prices checked September 28, 2026, that is $399.20 a month on Ooma Office Pro and $480.00 on RingCentral RingEX Core. Callata comes to $319.00 a month for 16 users ($99 a month with 5 users included, then $20 per additional user), below both.

Monthly list price for a 16-person team
Provider (plan)Pricing basisPer monthPer year
Callata (Callata Office)$99 incl. 5 users, $20 per extra user$319.00$3,828.00
Quo (Starter)$19.00 per user$304.00$3,648.00
Nextiva (Core)$23.00 per user$368.00$4,416.00
Ooma (Office Pro)$24.95 per user$399.20$4,790.40
Dialpad (Standard)$27.00 per user$432.00$5,184.00
RingCentral (RingEX Core)$30.00 per user$480.00$5,760.00

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 Naugatuck, CT?

Naugatuck has exchanges in 203 and 475; 203 has the most.

How many phone companies have exchanges in Naugatuck?

8, holding 11 exchanges between them, according to NANPA's 10/01/2026 file.

Can I keep my existing Naugatuck 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 Naugatuck?

Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 16 users come to $319.00 a month. For comparison, 16 users on RingCentral RingEX Core list at $480.00 a month (checked September 28, 2026).