Area code 937: Ohio
Area code 937 is a US state area code for Ohio, on Eastern Time. It has 780 prefixes in service across 123 rate centers, the largest being Dayton, Springfield and Beavercreek. It shares its area with 326, so local numbers there can start with any of them. Local calls there take 10 digits.
Local time in area code 937
America/New_York
Prefixes in service
780 of 792 possible
123 rate centers
Area code 937 facts
| Location | Ohio, United States |
|---|---|
| Time zone | Eastern Time |
| Overlays | 326 |
| Split from | 513 |
| In service since | September 28, 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 937?
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 937 rate centers with the most prefixes in service. 111 smaller ones aren't listed.
| Rate center | Prefixes |
|---|---|
| Dayton | 251 |
| Springfield | 42 |
| Beavercreek | 19 |
| Xenia | 19 |
| Bellefontaine | 18 |
| Marysville | 17 |
| Wilmington | 17 |
| Sidney | 17 |
| Fairborn | 15 |
| Piqua | 15 |
| Greenville | 15 |
| Troy | 13 |
Source: NANPA central office code assignments, file dated 10/17/2026. Each prefix holds up to 10,000 numbers.
How do I dial a 937 number?
NANPA's dialling plan for 937: 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 937 | 937-555-0147 |
|---|---|
| From another US or Canadian area code | 1-937-555-0147 |
| From outside North America | +1 937 555 0147 |
| E.164, for CRMs and SMS tools | +19375550147 |
When did area code 937 start?
Area code 937 went into service on September 28, 1996, split from 513. Today 937 and 326 cover the same area as an overlay, which is why 10-digit dialling is needed for local calls there.
Tools for 937 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 937 number tells you where it was issued, not what it is now.
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Area code 937 questions
- What state is area code 937?
- Area code 937 is in Ohio, United States. Its largest rate centers by number of prefixes are Dayton, Springfield, Beavercreek, Xenia and Bellefontaine.
- What time zone is area code 937 in?
- Eastern Time.
- What area codes overlay 937?
- 326. 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 937 start?
- Area code 937 went into service on September 28, 1996, split from 513.
- Is a 937 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 937 have?
- 780 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.