Ohio · Eastern Time
326 Area Code
Area code 326 is in Ohio, serving west-central and southwestern Ohio, including Dayton and Springfield. It is in the Eastern Time zone. It shares its territory with overlay code 937, so 10-digit dialing is required.
Last updated October 1, 2026 · Source: NANPA
Where is the 326 area code?
326 is a Ohio area code covering west-central and southwestern Ohio, including Dayton and Springfield. In the wider directory it sits in the Midwest region.
Cities in the 326 area code
- Dayton
- Springfield
- Kettering
- Beavercreek
- Huber Heights
- Fairborn
- Xenia
- Centerville
- Troy
- Piqua
- Sidney
- Miamisburg
- Urbana
- Bellefontaine
- Greenville
Counties served by 326
Montgomery County, Greene County, Clark County, Miami County, Shelby County, Darke County, Champaign County, Logan County, Preble County and Clinton County.
326 overlay codes and dialing
The 326 territory is covered by an overlay of 2 area codes: 326, 937. All of them serve the same geographic area, and the original code is 937. Because more than one code covers the same ground, 10-digit dialing is mandatory — you must dial the area code for every local call. New phone lines may be assigned any of these codes.
History of the 326 area code
326 went into service on March 8, 2020 as an overlay of 937, relieving number exhaustion in the Dayton area. Rather than splitting the region, the overlay lets existing customers keep their numbers while new lines draw from the added code. Learn more in our overlay guide.
Is 326 a scam or spam risk?
326 is a legitimate geographic area code, not a premium or toll line, so a call from it costs you nothing extra. That said, scammers frequently spoof real local area codes to look familiar on caller ID. A genuine 326 number on your screen is no guarantee the caller is in Dayton, OH or trustworthy. See spam & scam-risk area codes for how spoofing works and how to respond.
Other Ohio area codes
Explore more
See every code in Ohio, compare codes across the Midwest region, or view all Eastern Time codes. You can also browse the 3XX block or the complete numeric list of US area codes.
New to how this all works? Start with how area codes work, then read up on overlays, 10-digit dialing, and spam & scam-risk codes. To check another number, use the area code lookup tool.
Quick answers
326 area code FAQ
Where is the 326 area code?
The 326 area code is in Ohio, covering west-central and southwestern Ohio, including Dayton and Springfield, in the Midwest region.
What cities are in the 326 area code?
Cities in the 326 area code include Dayton, Springfield, Kettering, Beavercreek, Huber Heights, Fairborn, Xenia, Centerville, Troy and Piqua.
What time zone is 326 in?
326 is in the Eastern Time zone.
What is the overlay for the 326 area code?
326 shares its territory with 937. Both codes (326, 937) serve the same area, so 10-digit dialing is required for every call.
When did the 326 area code start?
326 went into service on March 8, 2020 as an overlay of 937.
Do I have to dial 10 digits for 326?
Yes. Because 326 is an overlay area, you must dial the full 10-digit number (area code + 7 digits) for every call.
Is 326 a toll-free or premium code?
No. 326 is a standard geographic area code, so calling it costs the same as any local or long-distance call on your plan. Toll-free calls use 800, 888, 877, 866, 855, 844 or 833.