New Hampshire business phone guide

Businesses in New Hampshire

New Hampshire had 1.4 million residents in the Census Bureau's July 2024 estimate, up 2.3% from April 2020. The U.S. population grew 2.6% over the same period. County Business Patterns counted 39,298 business establishments in the state in 2023 with 628,166 mid-March employees and $41.3 billion in annual payroll. The average establishment has 16.0 employees. 52.1% of establishments with employees had fewer than five people. The three largest sectors by establishments are retail trade (5,706), construction (4,949), and other services (except public administration) (3,935).

How New Hampshire's businesses compare

New Hampshire has 27.9 business establishments per 1,000 residents, 13.4% above the U.S. figure of 24.6. Establishments average 16.0 employees against 16.7 nationally, and payroll per employee is $65,717 (3.8% below the U.S. $68,342). 52.1% of establishments with employees have fewer than five people (U.S.: 55.5%), while 5.2% have 50 or more. Averages are pulled up by large employers; the size table is the better guide to what a typical business here looks like.

Phone numbers and carriers in New Hampshire

NANPA lists 1 geographic area code in service in New Hampshire, with 752 central office codes assigned across 147 rate centers and held by 49 carriers. 603 has the most assigned codes (752). The newest in service is 603, since January 1, 1947.

Small-business industries in New Hampshire

Among the 141 phone-heavy small-business industries these guides cover, the largest in New Hampshire by establishment count are full-service restaurants (1,371), limited-service restaurants (1,074), and landscaping services (1,027). Each links to a page with metro breakdowns, team sizes and phone costs for that industry in New Hampshire.

Metro and micropolitan areas

6 Census metro or micropolitan areas include part of New Hampshire. The largest is Boston, MA-NH with 5.0 million residents.

Picking a local number in New Hampshire

Every New Hampshire area code requires ten-digit dialing for local calls, according to NANPA's dialing-plan data, so customers always see and dial the full number. None of New Hampshire's area codes is in an overlay, so each code maps to its own territory. A business that serves one city usually takes a number in that city's dominant code; one that covers a region can hold up to 3 local numbers on Callata's plan.

Largest New Hampshire cities for local numbers

94 New Hampshire cities and towns have their own local-number page. The most populous are Manchester (603), Nashua (603), Concord (603), and Derry (603).

What phone service costs a New Hampshire business

The comparison below uses 16 users, the rounded average establishment size in New Hampshire. At list prices checked September 28, 2026, that is $399.20 a month on Ooma Office Pro and $480.00 on RingCentral RingEX Core. On Callata the same 16 people cost $319.00 a month, less than either per-seat plan.

Callata in New Hampshire

Callata Office costs $99 per month for up to 5 people, and each additional user is $20 a month. That covers up to 3 local numbers, calling from a browser or your cell, transcribed voicemail, recorded calls with AI summaries, after-hours routing and E911 on each number.

If you already have a number in New Hampshire, 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.