Get a local business phone number in Andover, NH

Area codes in Andover

Andover, in Merrimack County, New Hampshire, had a Census-estimated population of 2,450 in July 2024. All 2 exchanges NANPA lists for its rate center are in area code 603. Andover 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).

Phone carriers in Andover

2 carriers hold the 2 exchanges assigned to Andover's rate center. Kearsarge Tel. CO. has the most, with 1. 2 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.

Exchanges (NPA-NXX) assigned in Andover

A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Andover. The earliest assignment date recorded in the file for these codes is 2009. None were assigned in 2020 or later.

How local numbers work in Andover

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

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

The local business market

Andover is part of the Concord, NH micropolitan area, home to 158,000 people in 2024. County Business Patterns counted 4,213 business establishments in the Concord, NH micropolitan area in 2023, employing 62,841 people. The largest sectors by establishment count are construction (546), retail trade (545), and other services (except public administration) (536).

Business phone service in Andover

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 Andover, 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 15-person team is the benchmark here, the rounded average establishment size in the Concord, NH micropolitan area. Billed per seat at month-to-month list prices (checked September 28, 2026), RingCentral RingEX Core costs $450.00 a month and Ooma Office Pro $374.25. On Callata the same 15 people cost $299.00 a month, less than either per-seat plan.