Ohio has 15 active area codes serving its major cities and rural communities across the Eastern Time Zone. From Cleveland’s historic 216 to the newly introduced 436 in March 2024, these codes connect over 11.8 million residents throughout the state. Whether you need to identify an unknown caller, plan business communications, or schedule calls across regions, this guide provides complete and current information about every Ohio area code.
Summary:
- Ohio uses 15 active area codes, all in the Eastern Time Zone (UTC-5 in winter, UTC-4 in summer)
- Four original 1947 codes still serve major cities: 216 (Cleveland), 419 (Toledo), 513 (Cincinnati), 614 (Columbus)
- Area code 436 was activated in March 2024 as the newest overlay for the 440 region
- Area code 283 is approved but not yet active, pending as an overlay for 513 (Cincinnati)
- All overlay regions require 10-digit dialing for local calls, even within the same area code
Ohio Area Codes
| Area Code | Primary Cities/Regions | Time Zone | Type | Year Introduced |
|---|---|---|---|---|
| 216 | Cleveland, Lakewood, Euclid | Eastern (EST/EDT) | Original | 1947 |
| 220 | Newark, Zanesville, Chillicothe | Eastern (EST/EDT) | Overlay (740) | 2013 |
| 234 | Akron, Canton, Youngstown | Eastern (EST/EDT) | Overlay (330) | 1999 |
| 283 | Cincinnati metro (pending) | Eastern (EST/EDT) | Overlay (513) | Not Yet Active |
| 326 | Dayton, Springfield, Troy | Eastern (EST/EDT) | Overlay (937) | 2020 |
| 330 | Akron, Canton, Warren | Eastern (EST/EDT) | Split from 216 | 1996 |
| 380 | Columbus, Dublin, Westerville | Eastern (EST/EDT) | Overlay (614) | 2016 |
| 419 | Toledo, Mansfield, Lima | Eastern (EST/EDT) | Original | 1947 |
| 436 | Lorain, Elyria, Mentor | Eastern (EST/EDT) | Overlay (440) | 2024 |
| 440 | Parma, Lorain, Strongsville | Eastern (EST/EDT) | Split from 216 | 1997 |
| 513 | Cincinnati, Hamilton, Mason | Eastern (EST/EDT) | Original | 1947 |
| 567 | Toledo, Lima, Findlay | Eastern (EST/EDT) | Overlay (419) | 2002 |
| 614 | Columbus, Grove City, Worthington | Eastern (EST/EDT) | Original | 1947 |
| 740 | Portsmouth, Lancaster, Athens | Eastern (EST/EDT) | Split from 614 | 1998 |
| 937 | Dayton, Kettering, Xenia | Eastern (EST/EDT) | Split from 513 | 1996 |
Area Code 216: Cleveland
216 is one of Ohio’s four original codes from 1947, initially covering northeastern Ohio. Today it serves Cleveland and inner suburbs including Lakewood, Cleveland Heights, and Euclid. The code split in 1996 to create 330 and again in 1997 to create 440, reducing its coverage area. Approximately 1.5 million residents use 216, which remains Cleveland’s signature area code for the urban core.
Area Code 220: Southern Ohio Overlay
Introduced December 11, 2013, area code 220 overlays the existing 740 region across southern and southeastern Ohio. Major cities include Newark, Zanesville, Chillicothe, and Portsmouth. The overlay was implemented because 740 was projected to exhaust available numbers by 2015. All calls in the 220/740 region require 10-digit dialing, and new numbers may receive either code depending on availability.
Area Code 234: Northeast Ohio Overlay
Activated November 5, 1999, 234 was Ohio’s first overlay, supplementing 330 in the Akron-Canton-Youngstown region. The overlay became necessary just three years after 330 was created due to rapid mobile phone adoption and internet service growth. The 234/330 overlay serves approximately 2 million residents and requires 10-digit dialing for all local calls.
Area Code 283: Cincinnati Future Overlay
Not Yet Active: 283 has been approved by the Public Utilities Commission of Ohio (PUCO) to overlay the 513 region when number exhaustion occurs. The implementation date has not been announced, but the code is reserved for future use. Once activated, the Cincinnati metropolitan area will require 10-digit dialing for all local calls.
Area Code 326: Dayton Overlay
326 was introduced in 2020 as an overlay to 937, serving the Dayton metropolitan area including Springfield, Kettering, and Troy. The overlay was needed due to increasing demand for phone numbers from mobile devices, internet services, and business expansion. The 326/937 region requires 10-digit dialing for all calls.
Area Code 330: Akron-Canton-Youngstown
Created November 17, 1996, area code 330 split from 216 to serve the Akron, Canton, and Youngstown metropolitan areas. This region is Ohio’s most populous area code, serving approximately 2 million residents across northeast Ohio. Major cities include Akron, Canton, Warren, Cuyahoga Falls, and Boardman. The 330 code is now overlaid with 234.
Area Code 380: Columbus Overlay
Activated June 20, 2016, area code 380 overlays the 614 region serving Columbus and surrounding suburbs. The overlay was implemented to provide additional phone numbers as the capital city continued its rapid population and economic growth. Major cities include Columbus, Dublin, Westerville, and Grove City. All calls in the 380/614 region require 10-digit dialing.
Area Code 419: Toledo and Northwest Ohio
One of Ohio’s original 1947 area codes, 419 serves Toledo and northwest Ohio including Mansfield, Lima, Bowling Green, and Sandusky. The region includes the shores of Lake Erie and agricultural communities of northwest Ohio. 419 is now overlaid with 567, requiring 10-digit dialing for all local calls.
Area Code 436: Cleveland Suburbs Overlay
New: Activated March 2024: 436 is the newest code, implemented as an overlay to 440 in the Cleveland suburbs. The overlay serves Parma, Lorain, Elyria, Mentor, and surrounding communities. Existing 440 customers keep their numbers while new assignments receive either 436 or 440. All calls require 10-digit dialing in this region.
Area Code 440: Cleveland Suburbs
Created March 12, 1997, area code 440 split from 216 to serve Cleveland’s outer suburbs and the western Lake Erie shoreline. Major cities include Parma, Lorain, Elyria, Mentor, and Strongsville. The region includes Cuyahoga, Lorain, Lake, Geauga, and parts of Ashtabula counties. In 2024, the 440 region received overlay code 436.
Area Code 513: Cincinnati
513 is one of Ohio’s original 1947 codes, serving Cincinnati and southwest Ohio including Hamilton, Middletown, and Mason. The code covers the metropolitan area along the Ohio River and includes Butler, Warren, and Hamilton counties. Future overlay 283 has been approved but not yet activated. Currently, 513 does not require 10-digit dialing.
Area Code 567: Northwest Ohio Overlay
Introduced July 14, 2002, area code 567 overlays the 419 region in northwest Ohio. The overlay serves the same geographic area as 419, including Toledo, Lima, Findlay, and Sandusky. The implementation was necessary due to number exhaustion in the Toledo metropolitan area. All calls in the 567/419 region require 10-digit dialing.
Area Code 614: Columbus
One of Ohio’s four original 1947 area codes, 614 serves Columbus and central Ohio. Initially covering southeast Ohio, the code split in 1998 to create 740. Today, 614 serves the state capital and surrounding communities including Gahanna, Whitehall, and Upper Arlington. The region is overlaid with 380, requiring 10-digit dialing for all local calls.
Area Code 740: Southern and Southeastern Ohio
Created September 11, 1998, area code 740 split from 614 to serve southern and southeastern Ohio. Major cities include Portsmouth, Lancaster, Delaware, Marion, and Athens. The region covers rural communities, Appalachian foothills, and college towns including Ohio University in Athens. Code 740 is now overlaid with 220, requiring 10-digit dialing.
Area Code 937: Dayton
Established June 28, 1996, area code 937 split from 513 to serve the Dayton metropolitan area. Major cities include Dayton, Springfield, Kettering, Beavercreek, and Xenia. The region includes Montgomery, Greene, Miami, and Clark counties. Wright-Patterson Air Force Base, a major employer, uses this area code. The 937 region is now overlaid with 326.
Understanding Time Zones in Ohio
This state is entirely within the Eastern Time Zone, making scheduling and communication straightforward across the state. There are no regional time zone divisions, unlike some larger states. All 15 area codes operate in the same time zone.
UTC Offset and Daylight Saving Time
The state observes Eastern Standard Time (EST) during winter months, which is UTC-5. During Daylight Saving Time from March through November, the state follows Eastern Daylight Time (EDT), which is UTC-4. Clocks move forward one hour in March and back one hour in November.
Scheduling Calls Across Regions
Since all of the state shares the Eastern Time Zone, there are no time differences to consider when calling within the state. When scheduling calls with other regions, remember Ohio is one hour ahead of Central Time, two hours ahead of Mountain Time, and three hours ahead of Pacific Time.
Ohio Cities and Their Area Codes
- Columbus (614, 380) – State capital, population 905,000+
- Cleveland (216, 440, 436) – Major metro area, population 372,000+
- Cincinnati (513, future 283) – Southwest Ohio hub, population 309,000+
- Toledo (419, 567) – Northwest Ohio city, population 270,000+
- Akron (330, 234) – Northeast Ohio city, population 190,000+
- Dayton (937, 326) – Southwest Ohio city, population 137,000+
- Parma (440, 436) – Cleveland suburb, population 78,000+
- Canton (330, 234) – Northeast Ohio city, population 70,000+
- Youngstown (330, 234) – Northeast Ohio city, population 60,000+
- Lorain (440, 436) – Lake Erie city, population 65,000+
- Hamilton (513) – Southwest Ohio city, population 63,000+
- Springfield (937, 326) – Southwest Ohio city, population 58,000+
- Kettering (937, 326) – Dayton suburb, population 55,000+
- Lakewood (216) – Cleveland suburb, population 50,000+
- Newark (220, 740) – Central Ohio city, population 50,000+
How to Use Area Codes in Ohio
Local Calling Requirements
Many Ohio regions require 10-digit dialing for local calls. Overlay areas (234/330, 220/740, 567/419, 380/614, 326/937, 436/440) must dial the area code plus the seven-digit number, even when calling a neighbor. Non-overlay areas like 216 and 513 may allow seven-digit dialing, but 10-digit dialing always works.
Calling from Outside Ohio
To call Ohio from elsewhere in the United States or Canada, dial 1 plus the area code plus the seven-digit number (1-614-555-1234). From international locations, dial your country’s exit code, then 1 (the US country code), then the area code and number (+1-614-555-1234).
Mobile and Business Considerations
Mobile phones automatically include the area code when dialing. For businesses operating across multiple Ohio regions, consider which code best represents your primary market. Cleveland businesses often prefer 216 over 440, while Columbus businesses prefer 614 over 380, as these are the original, more recognized codes.
Frequently Asked Questions
What is the newest area code in Ohio?
Area code 436 is Ohio’s newest code, activated in March 2024. It overlays the 440 region serving Cleveland’s western suburbs including Lorain, Elyria, and Mentor. Existing 440 customers keep their numbers, while new phone lines receive either 436 or 440 depending on availability.
Do I need to dial the area code for local calls in Ohio?
It depends on your region. Overlay areas (234/330, 220/740, 567/419, 380/614, 326/937, 436/440) require 10-digit dialing for all calls, including local ones. Some non-overlay areas may still allow seven-digit dialing, but 10-digit dialing always works throughout the state.
What area code is 614?
614 serves Columbus, Ohio’s state capital, and surrounding central Ohio communities including Grove City, Westerville, and Worthington. It is one of the original 1947 area codes and is now overlaid with 380, requiring 10-digit dialing for all calls.
Additional Resources
For the most current information about this state, consult these official sources:
- Public Utilities Commission of Ohio (PUCO) – State regulatory authority for area code changes
- North American Numbering Plan Administration (NANPA) – Official area code database
- FCC Area Code Information – Federal telecommunications regulations