Area code 330: Ohio
Area code 330 is a US state area code for Ohio, on Eastern Time. It has 787 prefixes in service across 117 rate centers, the largest being Akron, Youngstown and Canton. It shares its area with 234, so local numbers there can start with any of them. Local calls there take 10 digits.
Local time in area code 330
America/New_York
Prefixes in service
787 of 792 possible
117 rate centers
Area code 330 facts
| Location | Ohio, United States |
|---|---|
| Time zone | Eastern Time |
| Overlays | 234 |
| Split from | 216 |
| In service since | March 9, 1996 |
| Local calls | 10 digits; toll calls 1 + 10 digits |
| Carrier | Not shown. An area code is where a number was issued; numbers port between carriers. Check line type |
Which cities and towns use area code 330?
NANPA records each prefix against a rate center, the local billing area a number belongs to, usually named after its main town. These are the 330 rate centers with the most prefixes in service. 105 smaller ones aren't listed.
| Rate center | Prefixes |
|---|---|
| Akron | 159 |
| Youngstown | 86 |
| Canton | 74 |
| Warren | 34 |
| Wooster | 22 |
| New Philadelphia | 22 |
| Medina | 22 |
| Kent | 21 |
| North Canton | 19 |
| Alliance | 17 |
| Massillon | 14 |
| Lisbon (Columbiana) | 10 |
Source: NANPA central office code assignments, file dated 10/17/2026. Each prefix holds up to 10,000 numbers.
How do I dial a 330 number?
NANPA's dialling plan for 330: local calls inside the code take 10 digits, toll calls 1 + 10 digits. From another area code, dial 1 first. From abroad, use +1. The examples use 555-0147, from a range reserved for fictional numbers.
| Local call inside 330 | 330-555-0147 |
|---|---|
| From another US or Canadian area code | 1-330-555-0147 |
| From outside North America | +1 330 555 0147 |
| E.164, for CRMs and SMS tools | +13305550147 |
When did area code 330 start?
Area code 330 went into service on March 9, 1996, split from 216. Today 330 and 234 cover the same area as an overlay, which is why 10-digit dialling is needed for local calls there.
Tools for 330 numbers
- Area code lookup
Look up any code or a whole list of numbers, or find the codes for a state or city.
- Area code time zone
Local time for a list of numbers, with a callable-now flag.
- NPA-NXX lookup
Rate center and state for one prefix, a level below the area code.
- TCPA calling hours checker
Whether it's inside the federal 8 a.m. to 9 p.m. calling window there now.
Next step
A 330 number tells you where it was issued, not what it is now.
Mobiles, landlines and VoIP lines share area codes, and numbers move between carriers. A live line-type and carrier lookup on every number in your list says which is which, and that decides which calling and texting rules apply. It's in the Email + Phone plan.
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Area code 330 questions
- What state is area code 330?
- Area code 330 is in Ohio, United States. Its largest rate centers by number of prefixes are Akron, Youngstown, Canton, Warren and Wooster.
- What time zone is area code 330 in?
- Eastern Time.
- What area codes overlay 330?
- 234. An overlay adds a new code to the same area instead of splitting it, so neighbours can have different area codes and local calls need 10 digits.
- When did area code 330 start?
- Area code 330 went into service on March 9, 1996, split from 216.
- Is a 330 number a cell phone or a landline?
- The area code can't tell you. In the US and Canada mobiles, landlines and VoIP lines share area codes and prefixes, and numbers move between carriers and line types. Only a live line-type lookup answers it for one number.
- How many phone numbers does area code 330 have?
- 787 of its 792 possible prefixes are in service, and each prefix holds up to 10,000 numbers. That counts prefixes assigned to carriers, not numbers in use.
Other area codes in Ohio
Sources
Location, overlays, in-service date and dialling plan: NANPA NPA database, file dated 10/16/2026. Prefixes and rate centers: NANPA central office code assignments, 10/17/2026. Time zones mapped to the IANA time zone database. By the SimpleVerifier Team; how we build these pages.