Get a local business phone number in Warner, NH
Warner's area code, prefixes and carriers from NANPA records, and how to put a Warner number in front of your customers.
- Area code
- 603
- Exchanges
- 2NANPA-assigned
- Carriers
- 2
- Population
- 2,970Census 2024 est.
Warner area codes
Warner town is a Census town in Merrimack County, New Hampshire, with an estimated 2,970 residents in 2024. All 2 exchanges NANPA lists for its rate center are in area code 603. Warner 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.
Warner exchanges by carrier
2 carriers hold the 2 exchanges assigned to Warner's rate center. Merrimack County 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.
| Carrier (NANPA operating company) | Exchanges | Share |
|---|---|---|
| Merrimack County Tel. CO. | 1 | 50% |
| Bell Atlantic Mobile, INC | 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.
Warner phone prefixes
These are the central office codes NANPA records for Warner. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2003. None were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 603 | 456, 748 |
Source: NANPA utilized central office code file.
What makes a number local to Warner
NANPA ties every exchange to a rate center. For Warner that is WARNER, so a number from one of these exchanges reads as local to people in and around Warner.
If your business already has a Warner number, porting it to Callata is free and keeps it on your cards, listings and vehicles.
Businesses around Warner
Warner 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).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Full-service restaurants | 124 | 2,444 | 19.7 |
| Landscaping services | 115 | 896 | 7.8 |
| Limited-service restaurants | 107 | 1,699 | 15.9 |
| Plumbing, heating and air-conditioning contractors | 99 | 823 | 8.3 |
| Electrical contractors | 85 | 321 | 3.8 |
| Law offices | 84 | 687 | 8.2 |
| General automotive repair shops | 81 | 338 | 4.2 |
| Child day care services | 62 | 648 | 10.5 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
A Warner number on Callata
Callata is a business phone system priced at $99 a month with 5 users included, then $20 per additional user. Callata Office includes up to 3 local business numbers, unlimited inbound calling, 1,500 pooled outbound US and Canada minutes per user each month, a browser softphone that can also ring your cell, voicemail with transcription, call recording with AI summaries, business-hours routing and E911 on every number.
If you already have a number in Warner, 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.
| Provider (plan) | Pricing basis | Per month | Per year |
|---|---|---|---|
| Callata (Callata Office) | $99 incl. 5 users, $20 per extra user | $299.00 | $3,588.00 |
| Quo (Starter) | $19.00 per user | $285.00 | $3,420.00 |
| Nextiva (Core) | $23.00 per user | $345.00 | $4,140.00 |
| Ooma (Office Pro) | $24.95 per user | $374.25 | $4,491.00 |
| Dialpad (Standard) | $27.00 per user | $405.00 | $4,860.00 |
| RingCentral (RingEX Core) | $30.00 per user | $450.00 | $5,400.00 |
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 Warner, NH?
603. All exchanges NANPA lists for Warner are in 603.
How many phone companies have exchanges in Warner?
2, holding 2 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Warner 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 Warner?
Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 15 users come to $299.00 a month. For comparison, 15 users on RingCentral RingEX Core list at $450.00 a month (checked September 28, 2026).