Midwest region · Eastern Time
Ohio Area Codes
All 15 area codes serving Ohio, the cities each one covers, and which are overlays. Ohio is served by 15 area codes in the Eastern Time zone.
Last updated October 3, 2026
Full list
Every Ohio area code
Ohio is served by 15 area codes in the Eastern Time zone. 7 of these are overlay codes layered over busy metros; the rest are geographic codes.
| Code | Area served | Type | In service |
|---|---|---|---|
| 216 | The city of Cleveland and its inner-ring Cuyahoga County suburbs | Geographic | Since 1947 |
| 220 | Southeastern and east-central Ohio outside the Columbus metro, including Newark and Zanesville | Overlay | Since 2015 |
| 234 | Northeastern Ohio, including Akron, Canton and Youngstown | Overlay | Since 2000 |
| 283 | Southwestern Ohio, including Cincinnati, Hamilton and Middletown | Overlay | Since 2023 |
| 326 | West-central and southwestern Ohio, including Dayton and Springfield | Overlay | Since 2020 |
| 330 | Northeastern Ohio, including Akron, Canton and Youngstown | Geographic | Since 1996 |
| 380 | Columbus and its central Ohio suburbs, mainly Franklin County | Overlay | Since 2016 |
| 419 | Northwestern and north-central Ohio, including Toledo, Lima and Mansfield | Geographic | Since 1947 |
| 436 | Northeastern Ohio suburbs ringing Cleveland, plus Lorain, Lake, Geauga and Ashtabula counties | Overlay | Since 2024 |
| 440 | Northeastern Ohio suburbs ringing Cleveland, plus Lorain, Lake, Geauga and Ashtabula counties | Geographic | Since 1997 |
| 513 | Southwestern Ohio, including Cincinnati, Hamilton and Middletown | Geographic | Since 1947 |
| 567 | Northwestern and north-central Ohio, including Toledo, Lima and Mansfield | Overlay | Since 2002 |
| 614 | Columbus and its central Ohio suburbs, mainly Franklin County | Geographic | Since 1947 |
| 740 | Southeastern and east-central Ohio outside the Columbus metro, including Newark and Zanesville | Geographic | Since 1997 |
| 937 | West-central and southwestern Ohio, including Dayton and Springfield | Geographic | Since 1996 |
Area codes and dialing in Ohio
Ohio's 15 area codes mix older geographic codes with newer overlays. The busiest metros — around Cleveland, Toledo, Cincinnati — carry the most numbers and rely on overlays, which is why 10-digit dialing is required there. Quieter parts of the state may still use a single code. The oldest code in Ohio is 216 (Cleveland), one of the original 1947 area codes.
Whenever a Ohio region runs low on numbers, a new overlay is added on top rather than splitting the map, so existing customers keep their numbers. See 10-digit dialing for what that means in practice, or the newest area codes for upcoming changes.
Ohio city area code pages
Look up the area codes for a specific Ohio city: Cleveland · Akron · Cincinnati · Columbus · Dayton · Newark · Toledo · Youngstown.
Browse Ohio another way
Explore by Midwest region, by time zone, or jump to the city index. You can also see the complete numeric list of every US area code.
Quick answers
Ohio area code FAQ
How many area codes does Ohio have?
Ohio currently has 15 area codes: 216, 220, 234, 283, 326, 330, 380, 419, 436, 440, 513, 567, 614, 740, 937.
What is the main area code for Ohio?
Ohio has no single main code. Its original 1947 area codes were 216, 419, 513 and 614; today the main cities are served by 216 (Cleveland), 419 (Toledo), 513 (Cincinnati), 614 (Columbus), 330 (Akron).
Does Ohio require 10-digit dialing?
Yes, in its overlay areas you must dial all 10 digits, even for local calls. Dialing all 10 digits always works, so it is the safe habit.