CallataGuidesGet a local business phone number in Sterling, OH
Sterling's area codes, prefixes and carriers from NANPA records, and how to put a Sterling number in front of your customers.
- Area code
- 234 / 330
- Exchanges
- 2NANPA-assigned
- Carriers
- 2
- Population
- 4,772Census 2024 est.
What area code is Sterling, OH?
With 4,772 residents in the Census 2024 estimate, Sterling sits in Brown County, Ohio. NANPA lists 2 exchanges for its rate center across 2 area codes; 234 has the most (1, 50%). 234 is part of an overlay with 330, so a new local number in Sterling may carry any of those codes depending on which have numbers available. Sterling is in the Eastern time zone.
According to NANPA's dialing-plan data, local calls within 234 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.
Sterling exchanges by carrier
2 carriers hold the 2 exchanges assigned to Sterling's rate center. TWC Ip Enabled Services, 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 |
|---|---|---|
| TWC Ip Enabled Services, LLC | 1 | 50% |
| Brightspeed of Northwest Ohio, 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.
Sterling phone prefixes
A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Sterling. The earliest assignment date recorded in the file for these codes is 2007. None were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 234 | 437 |
| 330 | 939 |
Source: NANPA utilized central office code file.
Rate centers and local calling in Sterling
Phone numbers are tied to a rate center, the local calling area used to decide whether a call is local or toll. Sterling's numbers are rated to the STERLING rate center in NANPA's records. A business number from one of the prefixes above shows up on customers' phones as a Sterling number.
If your business already has a Sterling number, porting it to Callata is free and keeps it on your cards, listings and vehicles.
Who does business near Sterling
Sterling is part of the Cincinnati, OH-KY-IN metro area, home to 2.3 million people in 2024. County Business Patterns counted 48,255 business establishments in the Cincinnati, OH-KY-IN metro area in 2023, employing 1,030,698 people. The largest sectors by establishment count are retail trade (6,169), health care and social assistance (5,605), and accommodation and food services (4,958).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Limited-service restaurants | 1,896 | 39,771 | 21.0 |
| Full-service restaurants | 1,601 | 43,114 | 26.9 |
| Physician practices | 1,003 | 21,885 | 21.8 |
| Offices of real estate agents and brokers | 801 | 1,903 | 2.4 |
| Landscaping services | 797 | 6,520 | 8.2 |
| Insurance agencies and brokerages | 782 | 4,447 | 5.7 |
| Law offices | 749 | 5,610 | 7.5 |
| Dental offices | 745 | 6,356 | 8.5 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
A Sterling number on Callata
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 Sterling, 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 21 users, the rounded average establishment size in the Cincinnati, OH-KY-IN metro area. At list prices checked September 28, 2026, that is $523.95 a month on Ooma Office Pro and $630.00 on RingCentral RingEX Core. On Callata the same 21 people cost $419.00 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 | $419.00 | $5,028.00 |
| Quo (Starter) | $19.00 per user | $399.00 | $4,788.00 |
| Nextiva (Core) | $23.00 per user | $483.00 | $5,796.00 |
| Ooma (Office Pro) | $24.95 per user | $523.95 | $6,287.40 |
| Dialpad (Standard) | $27.00 per user | $567.00 | $6,804.00 |
| RingCentral (RingEX Core) | $30.00 per user | $630.00 | $7,560.00 |
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 Sterling, OH?
Sterling has exchanges in 234 and 330; 234 has the most.
How many phone companies have exchanges in Sterling?
2, holding 2 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Sterling 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 Sterling?
Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 21 users come to $419.00 a month. For comparison, 21 users on RingCentral RingEX Core list at $630.00 a month (checked September 28, 2026).