Get a local business phone number in Greenville, NH
Greenville's area code, prefixes and carriers from NANPA records, and how to put a Greenville number in front of your customers.
- Area code
- 603
- Exchanges
- 2NANPA-assigned
- Carriers
- 2
- Population
- 2,005Census 2024 est.
Greenville area codes
Greenville town is a Census town in Hillsborough County, New Hampshire, with an estimated 2,005 residents in 2024. All 2 exchanges NANPA lists for its rate center are in area code 603. Greenville 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 code | Exchanges here | Share | In service since | Overlay with | Time zone |
|---|---|---|---|---|---|
| 603 | 2 | 100% | 1947 | none | Eastern |
Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.
Phone carriers in Greenville
2 carriers hold the 2 exchanges assigned to Greenville's rate center. Comcast Ip Phone, LLC has the most, with 1. 2 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.
| Carrier (NANPA operating company) | Exchanges | Share |
|---|---|---|
| Comcast Ip Phone, LLC | 1 | 50% |
| Consolidated Comm of No. New England-nh | 1 | 50% |
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 Greenville
These are the central office codes NANPA records for Greenville. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2006. None were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 603 | 291, 878 |
Source: NANPA utilized central office code file.
How local numbers work in Greenville
What a caller sees as "local" is the area code plus prefix. In Greenville, those come from the GREENVILLE rate center, as recorded by NANPA.
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
Greenville 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).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Full-service restaurants | 365 | 8,223 | 22.5 |
| Limited-service restaurants | 305 | 4,771 | 15.6 |
| Landscaping services | 245 | 1,193 | 4.9 |
| Physician practices | 228 | 3,772 | 16.5 |
| Residential remodelers | 217 | 564 | 2.6 |
| Plumbing, heating and air-conditioning contractors | 206 | 1,988 | 9.7 |
| Dental offices | 198 | 1,778 | 9.0 |
| Law offices | 194 | 1,462 | 7.5 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
Setting up a Greenville business line
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 Greenville, 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.
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. On Callata the same 17 people cost $339.00 a month, less than either per-seat plan.
| Provider (plan) | Pricing basis | Per month | Per year |
|---|---|---|---|
| Callata (Callata Office) | $99 incl. 5 users, $20 per extra user | $339.00 | $4,068.00 |
| Quo (Starter) | $19.00 per user | $323.00 | $3,876.00 |
| Nextiva (Core) | $23.00 per user | $391.00 | $4,692.00 |
| Ooma (Office Pro) | $24.95 per user | $424.15 | $5,089.80 |
| Dialpad (Standard) | $27.00 per user | $459.00 | $5,508.00 |
| RingCentral (RingEX Core) | $30.00 per user | $510.00 | $6,120.00 |
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 Greenville, NH?
603. All exchanges NANPA lists for Greenville are in 603.
How many phone companies have exchanges in Greenville?
2, holding 2 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Greenville 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 Greenville?
Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 17 users come to $339.00 a month. For comparison, 17 users on RingCentral RingEX Core list at $510.00 a month (checked September 28, 2026).