Ohio Area Codes
Compare 15 in-service area codes assigned to Ohio. Explore each code’s introduction date, overlays, possible time zones, and public prefix records.
Ohio numbering at a glance
- In-service area codes
- 15
- Time-zone labels in NANPA data
- Eastern
- Listed in-service or assigned prefixes
- 7,280 · source dated 2026-09-29
These are numbering assignments. The counts do not represent active phone numbers, current carriers, or a caller’s physical location.
Compare area codes in Ohio
| Code | Introduced | Other codes in overlay | Time zones | Listed prefixes |
|---|---|---|---|---|
| 216 | 01-Jan-1947 | None listed | Eastern | 608 |
| 220 | 22-Apr-2015 | 740 | Eastern | 140 |
| 234 | 30-Oct-2000 | 330 | Eastern | 394 |
| 283 | 28-Apr-2023 | 513 | Eastern | 47 |
| 326 | 08-Mar-2020 | 937 | Eastern | 86 |
| 330 | 09-Mar-1996 | 234 | Eastern | 787 |
| 380 | 27-Feb-2016 | 614 | Eastern | 134 |
| 419 | 01-Jan-1947 | 567 | Eastern | 783 |
| 436 | 01-Mar-2024 | 440 | Eastern | — |
| 440 | 16-Aug-1997 | 436 | Eastern | 757 |
| 513 | 01-Jan-1947 | 283 | Eastern | 784 |
| 567 | 01-Jan-2002 | 419 | Eastern | 417 |
| 614 | 01-Jan-1947 | 380 | Eastern | 777 |
| 740 | 06-Dec-1997 | 220 | Eastern | 786 |
| 937 | 28-Sep-1996 | 326 | Eastern | 780 |
Source: NANPA NPA database, dated 2026-09-28. Prefix counts: NANPA US assignment report. View official area-code maps.
Overlay groups in Ohio
Codes in an overlay group can serve the same broad numbering area. A person may keep a number after moving, and the displayed number may be spoofed.
Find a number in Ohio
Open an area-code page above to check a prefix and possible time zones. You can also search US telephone rate-center names; those names are not exact city coverage.
A code cannot verify the owner of a number. If an unexpected caller asks for money or sensitive information, verify the claim independently.