CallataGuidesGet a local business phone number in Gratis, OH
Gratis's area codes, prefixes and carriers from NANPA records, and how to put a Gratis number in front of your customers.
- Area code
- 937 / 326
- Exchanges
- 3NANPA-assigned
- Carriers
- 3
- Population
- 4,205Census 2024 est.
Gratis area codes
With 4,205 residents in the Census 2024 estimate, Gratis sits in Preble County, Ohio. NANPA lists 3 exchanges for its rate center across 2 area codes; 937 has the most (2, 67%). 937 is part of an overlay with 326, so a new local number in Gratis may carry any of those codes depending on which have numbers available. Gratis is in the Eastern time zone.
According to NANPA's dialing-plan data, local calls within 937 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.
Phone carriers in Gratis
3 carriers hold the 3 exchanges assigned to Gratis's rate center. Onvoy Spectrum, LLC has the most, with 1. 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 Spectrum, LLC | 1 | 33% |
| Level 3 Communications, LLC - Oh | 1 | 33% |
| Frontier North, INC. - Oh | 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.
Exchanges (NPA-NXX) assigned in Gratis
These are the central office codes NANPA records for Gratis. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2002. 1 of the 3 were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 326 | 225 |
| 937 | 634, 787 |
Source: NANPA utilized central office code file.
When Gratis's exchanges were assigned
Assignment dates show when each block of Gratis numbers was added to the local supply.
| Decade assigned | Exchanges | Share |
|---|---|---|
| 2000s | 1 | 50% |
| 2020s | 1 | 50% |
Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.
How local numbers work in Gratis
What a caller sees as "local" is the area code plus prefix. In Gratis, those come from the GRATIS rate center, as recorded by NANPA.
New local numbers are drawn from carrier inventory, so the exact 937 numbers available change over time; porting an existing number is free.
The local business market
Gratis is outside any Census metro or micropolitan area, so the figures below are statewide. County Business Patterns counted 255,049 business establishments in Ohio in 2023, employing 5,081,279 people. The largest sectors by establishment count are retail trade (34,275), health care and social assistance (31,168), and other services (except public administration) (27,524).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Limited-service restaurants | 10,404 | 204,250 | 19.6 |
| Full-service restaurants | 7,698 | 188,916 | 24.5 |
| Physician practices | 5,551 | 107,516 | 19.4 |
| Insurance agencies and brokerages | 4,382 | 27,942 | 6.4 |
| Landscaping services | 4,228 | 28,603 | 6.8 |
| Law offices | 4,067 | 27,760 | 6.8 |
| Dental offices | 3,814 | 33,003 | 8.7 |
| Residential remodelers | 3,362 | 13,233 | 3.9 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
Setting up a Gratis 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 Gratis, 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 Ohio. 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 Gratis, OH?
Gratis has exchanges in 937 and 326; 937 has the most.
How many phone companies have exchanges in Gratis?
3, holding 3 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Gratis 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 Gratis?
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).