Get a local business phone number in Hartford, OH
Hartford's area codes, prefixes and carriers from NANPA records, and how to put a Hartford number in front of your customers.
- Area code
- 330 / 234
- Exchanges
- 3NANPA-assigned
- Carriers
- 2
- Population
- 1,846Census 2024 est.
What area code is Hartford, OH?
Hartford township is a Census town in Trumbull County, Ohio, with an estimated 1,846 residents in 2024. NANPA lists 3 exchanges for its rate center across 2 area codes; 330 has the most (2, 67%). 330 is part of an overlay with 234, so a new local number in Hartford may carry any of those codes depending on which have numbers available. Hartford is in the Eastern time zone.
According to NANPA's dialing-plan data, local calls within 330 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.
Hartford exchanges by carrier
2 carriers hold the 3 exchanges assigned to Hartford's rate center. Onvoy, LLC - Oh has the most, with 2. 3 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 |
|---|---|---|
| Onvoy, LLC - Oh | 2 | 67% |
| Brightspeed of Northwest Ohio, INC. | 1 | 33% |
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.
Hartford phone prefixes
These are the central office codes NANPA records for Hartford. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2018. 1 of the 3 were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 234 | 306 |
| 330 | 443, 772 |
Source: NANPA utilized central office code file.
When Hartford's exchanges were assigned
Assignment dates show when each block of Hartford numbers was added to the local supply.
| Decade assigned | Exchanges | Share |
|---|---|---|
| 2010s | 1 | 50% |
| 2020s | 1 | 50% |
Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.
Rate centers and local calling in Hartford
NANPA ties every exchange to a rate center. For Hartford that is HARTFORD, so a number from one of these exchanges reads as local to people in and around Hartford.
Keeping an existing Hartford number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 330 when you pick it.
Who does business near Hartford
Hartford is part of the Youngstown-Warren, OH metro area, home to 426,000 people in 2024. County Business Patterns counted 9,191 business establishments in the Youngstown, OH metro area in 2023, employing 139,977 people. The largest sectors by establishment count are retail trade (1,433), health care and social assistance (1,244), and other services (except public administration) (1,051).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Limited-service restaurants | 421 | 7,643 | 18.2 |
| Full-service restaurants | 290 | 6,827 | 23.5 |
| Physician practices | 229 | 3,540 | 15.5 |
| Insurance agencies and brokerages | 172 | 718 | 4.2 |
| Landscaping services | 169 | 484 | 2.9 |
| Law offices | 158 | 582 | 3.7 |
| Dental offices | 131 | 1,025 | 7.8 |
| General automotive repair shops | 101 | 415 | 4.1 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
A Hartford 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 Hartford, 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.
Per-seat phone plans multiply by headcount. For the rounded average establishment size in the Youngstown, OH metro area, 15 users on RingCentral RingEX Core come to $450.00 a month and on Ooma Office Pro $374.25, at month-to-month list prices checked September 28, 2026. 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 Hartford, OH?
Hartford has exchanges in 330 and 234; 330 has the most.
How many phone companies have exchanges in Hartford?
2, holding 3 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Hartford 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 Hartford?
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).