Dayton, Ohio
Area code 937
Where Is Area Code 937?
Area code 937 is in western Ohio. It serves Dayton and a broad section of southwestern and west-central Ohio. The area includes communities north, west, and south of Dayton.
Major cities in area code 937 include Dayton, Springfield, Troy, Xenia, Fairborn, Piqua, Sidney, and Greenville. The area code serves all or parts of counties such as Montgomery, Greene, Miami, Clark, Darke, Champaign, Logan, Shelby, and Warren.
This region includes the Great Miami River valley and parts of the Miami Valley, a common name for the Dayton area. Notable places within the 937 area include Wright-Patterson Air Force Base near Fairborn and the National Museum of the United States Air Force.
History of Area Code 937
Area code 937 was created on September 28, 1996. It was split from area code 513, which had served a much larger part of southwestern Ohio before demand for new phone numbers increased.
Area code 937 later received an overlay. Area code 326 was approved as an overlay for the same region, and 10-digit dialing became mandatory in the 937 area on March 9, 2020. The overlay was added because the supply of available 937 numbers was running low.
Key Facts About Area Code 937
- Area code 937 is a geographic area code in the state of Ohio, and Dayton is its largest city.
- Area code 937 is in the Eastern Time Zone and follows Eastern Standard Time and Eastern Daylight Time.
- Area code 937 was created on September 28, 1996, in a split from area code 513.
- Area code 326 overlays area code 937 in the same service area.
- Ten-digit dialing became mandatory in the 937 region on March 9, 2020, because of the 326 overlay.
- Area code 937 covers major communities including Dayton, Springfield, Troy, Xenia, Fairborn, Piqua, Sidney, and Greenville.
- Wright State University in Fairborn and the University of Dayton in Dayton are both located in the 937 calling area.
- Major landmarks in area code 937 include Wright-Patterson Air Force Base and the National Museum of the United States Air Force.
Frequently Asked Questions
What state is area code 937 in?
Area code 937 is in Ohio.
What major cities use area code 937?
Major cities in area code 937 include Dayton, Springfield, Troy, Xenia, Fairborn, Piqua, Sidney, and Greenville.
Is area code 937 a toll-free number?
No. Area code 937 is a geographic area code for western Ohio.
Last updated: April 2026