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Get a local business phone number in Barrington, NH

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

Area code
603
Exchanges
3NANPA-assigned
Carriers
3
Population
9,629Census 2024 est.

Area codes in Barrington

Barrington town is a Census town in Strafford County, New Hampshire, with an estimated 9,629 residents in 2024. All 3 exchanges NANPA lists for its rate center are in area code 603. Barrington is in the Eastern time zone.

According to NANPA's dialing-plan data, local calls within 603 are dialed as ten digits (area code plus number) and toll calls as ten digits (area code plus number).

Area codes with exchanges in Barrington, NH
Area codeExchanges hereShareIn service sinceOverlay withTime zone
6033100%1947noneEastern

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

Barrington exchanges by carrier

3 carriers hold the 3 exchanges assigned to Barrington's rate center. Level 3 Communications, LLC - NH has the most, with 1. 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.

Carriers holding exchanges in Barrington, NH
Carrier (NANPA operating company)ExchangesShare
Level 3 Communications, LLC - NH133%
Consolidated Comm of No. New England-nh133%
Otel Telekom, INC. - NH133%

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.

Exchanges (NPA-NXX) assigned in Barrington

A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Barrington. The earliest assignment date recorded in the file for these codes is 2006. None were assigned in 2020 or later.

Prefixes assigned in Barrington, NH
Area codePrefixes (NXX)
603280, 664, 905

Source: NANPA utilized central office code file.

How local numbers work in Barrington

Phone numbers are tied to a rate center, the local calling area used to decide whether a call is local or toll. Barrington's numbers are rated to the BARRINGTON rate center in NANPA's records. A business number from one of the prefixes above shows up on customers' phones as a Barrington number.

Keeping an existing Barrington number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 603 when you pick it.

Who does business near Barrington

Barrington is part of the Boston-Cambridge-Newton, MA-NH metro area, home to 5.0 million people in 2024. County Business Patterns counted 133,807 business establishments in the Boston, MA-NH metro area in 2023, employing 2,681,704 people. The largest sectors by establishment count are professional, scientific, and technical services (17,803), retail trade (15,568), and health care and social assistance (15,127).

Selected industries in the Boston, MA-NH metro area, 2023
IndustryEstablishmentsEmployeesEmployees per establishment
Full-service restaurants4,652104,68922.5
Limited-service restaurants3,92051,82513.2
Residential remodelers3,26311,1123.4
Law offices2,96724,7078.3
Landscaping services2,87612,4944.3
Dental offices2,41919,3138.0
Plumbing, heating and air-conditioning contractors2,16922,86010.5
Beauty salons2,02510,9955.4

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

Business phone service in Barrington

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 Barrington 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.

Per-seat phone plans multiply by headcount. For the rounded average establishment size in the Boston, MA-NH metro area, 20 users on RingCentral RingEX Core come to $600.00 a month and on Ooma Office Pro $499.00, at month-to-month list prices checked September 28, 2026. Callata comes to $399.00 a month for 20 users ($99 a month with 5 users included, then $20 per additional user), below both.

Monthly list price for a 20-person team
Provider (plan)Pricing basisPer monthPer year
Callata (Callata Office)$99 incl. 5 users, $20 per extra user$399.00$4,788.00
Quo (Starter)$19.00 per user$380.00$4,560.00
Nextiva (Core)$23.00 per user$460.00$5,520.00
Ooma (Office Pro)$24.95 per user$499.00$5,988.00
Dialpad (Standard)$27.00 per user$540.00$6,480.00
RingCentral (RingEX Core)$30.00 per user$600.00$7,200.00

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 Barrington, NH?

603. All exchanges NANPA lists for Barrington are in 603.

How many phone companies have exchanges in Barrington?

3, holding 3 exchanges between them, according to NANPA's 10/01/2026 file.

Can I keep my existing Barrington 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 Barrington?

Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 20 users come to $399.00 a month. For comparison, 20 users on RingCentral RingEX Core list at $600.00 a month (checked September 28, 2026).