Get a local business phone number in Exeter, NH

Exeter area codes

With 16,205 residents in the Census 2024 estimate, Exeter sits in Rockingham County, New Hampshire. All 15 exchanges NANPA lists for its rate center are in area code 603. Exeter 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).

Exeter exchanges by carrier

9 carriers hold the 15 exchanges assigned to Exeter's rate center. Consolidated Comm of No. New England-nh has the most, with 5. 11 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.

Exeter phone prefixes

These are the central office codes NANPA records for Exeter. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2002. None were assigned in 2020 or later.

When Exeter's exchanges were assigned

Assignment dates show when each block of Exeter numbers was added to the local supply.

What makes a number local to Exeter

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

New local numbers are drawn from carrier inventory, so the exact 603 numbers available change over time; porting an existing number is free.

Businesses around Exeter

Exeter 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).

A Exeter 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 Exeter, 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.

A 20-person team is the benchmark here, the rounded average establishment size in the Boston, MA-NH metro area. Billed per seat at month-to-month list prices (checked September 28, 2026), RingCentral RingEX Core costs $600.00 a month and Ooma Office Pro $499.00. On Callata the same 20 people cost $399.00 a month, less than either per-seat plan.