Get a local business phone number in Hillsborough, NH

Area codes in Hillsborough

Hillsborough, in Hillsborough County, New Hampshire, had a Census-estimated population of 6,089 in July 2024. All 2 exchanges NANPA lists for its rate center are in area code 603. Hillsborough 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).

Hillsborough exchanges by carrier

2 carriers hold the 2 exchanges assigned to Hillsborough's rate center. Merrimack CO. Telephone CO., d/b/a Contoocook Valley 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 Hillsborough

These are the central office codes NANPA records for Hillsborough. A caller seeing one of them recognizes a local number. None were assigned in 2020 or later.

What makes a number local to Hillsborough

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

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

The local business market

Hillsborough is part of the Manchester-Nashua, NH metro area, home to 430,000 people in 2024. County Business Patterns counted 11,028 business establishments in the Manchester, NH metro area in 2023, employing 186,868 people. The largest sectors by establishment count are retail trade (1,488), construction (1,383), and professional, scientific, and technical services (1,202).

A Hillsborough 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.

Porting a number you already use in Hillsborough 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 17 users, the rounded average establishment size in the Manchester, NH metro area. At list prices checked September 28, 2026, that is $424.15 a month on Ooma Office Pro and $510.00 on RingCentral RingEX Core. Callata comes to $339.00 a month for 17 users ($99 a month with 5 users included, then $20 per additional user), below both.