CallataGuidesGet a local business phone number in Harrison, OH
Harrison's area codes, prefixes and carriers from NANPA records, and how to put a Harrison number in front of your customers.
- Area code
- 513 / 283
- Exchanges
- 9NANPA-assigned
- Carriers
- 7
- Population
- 21,781Census 2024 est.
Area codes in Harrison
With 21,781 residents in the Census 2024 estimate, Harrison sits in Montgomery County, Ohio. NANPA lists 9 exchanges for its rate center across 2 area codes; 513 has the most (8, 89%). 513 is part of an overlay with 283, so a new local number in Harrison may carry any of those codes depending on which have numbers available. Harrison is in the Eastern time zone.
According to NANPA's dialing-plan data, local calls within 513 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.
Phone carriers in Harrison
7 carriers hold the 9 exchanges assigned to Harrison's rate center. Onvoy, LLC - Oh has the most, with 2. 8 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 | 22% |
| Cincinnati Bell | 2 | 22% |
| Level 3 Communications, LLC - Oh | 1 | 11% |
| Paetec Itel, LLC | 1 | 11% |
| Level 3 Telecom of Ohio, LLC - Oh | 1 | 11% |
| Mcimetro Access Transmission Services LLC - Oh | 1 | 11% |
| Barr Tell USA | 1 | 11% |
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 Harrison
Each prefix below is a block of up to 10,000 numbers that NANPA assigned to Harrison's rate center (HARRISON). The earliest assignment date recorded in the file for these codes is 2023. 1 of the 9 were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 283 | 208 |
| 513 | 202, 279, 367, 452, 715, 788, 845, 951 |
Source: NANPA utilized central office code file.
Rate centers and local calling in Harrison
Phone numbers are tied to a rate center, the local calling area used to decide whether a call is local or toll. Harrison's numbers are rated to the HARRISON rate center in NANPA's records. A business number from one of the prefixes above shows up on customers' phones as a Harrison number.
New local numbers are drawn from carrier inventory, so the exact 513 numbers available change over time; porting an existing number is free.
Who does business near Harrison
Harrison is part of the Dayton-Kettering-Beavercreek, OH metro area, home to 822,000 people in 2024. County Business Patterns counted 16,372 business establishments in the Dayton, OH metro area in 2023, employing 330,420 people. The largest sectors by establishment count are retail trade (2,323), health care and social assistance (2,284), and other services (except public administration) (1,787).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Limited-service restaurants | 758 | 15,471 | 20.4 |
| Physician practices | 518 | 8,387 | 16.2 |
| Full-service restaurants | 475 | 13,377 | 28.2 |
| Insurance agencies and brokerages | 277 | 1,327 | 4.8 |
| Landscaping services | 250 | 1,986 | 7.9 |
| Dental offices | 242 | 2,384 | 9.9 |
| Law offices | 231 | 1,671 | 7.2 |
| Plumbing, heating and air-conditioning contractors | 224 | 2,670 | 11.9 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
Setting up a Harrison business line
Callata Office costs $99 per month for up to 5 people, and each additional user is $20 a month. That covers up to 3 local numbers, calling from a browser or your cell, transcribed voicemail, recorded calls with AI summaries, after-hours routing and E911 on each number.
If you already have a number in Harrison, 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 20 users, the rounded average establishment size in the Dayton, OH metro area. At list prices checked September 28, 2026, that is $499.00 a month on Ooma Office Pro and $600.00 on RingCentral RingEX Core. On Callata the same 20 people cost $399.00 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 | $399.00 | $4,788.00 |
| Quo (Starter) | $19.00 per user | $380.00 | $4,560.00 |
| Nextiva (Core) | $23.00 per user | $460.00 | $5,520.00 |
| Ooma (Office Pro) | $24.95 per user | $499.00 | $5,988.00 |
| Dialpad (Standard) | $27.00 per user | $540.00 | $6,480.00 |
| RingCentral (RingEX Core) | $30.00 per user | $600.00 | $7,200.00 |
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 Harrison, OH?
Harrison has exchanges in 513 and 283; 513 has the most.
How many phone companies have exchanges in Harrison?
7, holding 9 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Harrison 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 Harrison?
Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 20 users come to $399.00 a month. For comparison, 20 users on RingCentral RingEX Core list at $600.00 a month (checked September 28, 2026).