Area codes 937 and 326

At the time, literature promoting the new area code took advantage of the fact that the digits of 937 spell out "YES" on a standard telephone keypad.

[4][5] Beginning August 10, 2019, subscribers were encouraged to dial ten digits for local calls within the area code.

On February 8, 2020, traditional seven-digit dialing ended, and on March 8, 2020, area code 326 was activated.

Communities served with a 2019 population greater than 10,000, and those that are county seats, include Beavercreek, Bellefontaine, Centerville, Clayton, Dayton, Eaton, Englewood, Fairborn, Franklin, Georgetown, Greenville, Hillsboro, Huber Heights, Kettering, Marysville, Miamisburg, Piqua, Riverside, Sidney, Springboro, Springfield, Tipp City, Trotwood, Troy, Urbana, Vandalia, West Carrollton, West Union, Wilmington and Xenia.

[4] Counties comprising the numbering plan area include all or parts of Adams, Brown, Champaign, Clark, Clermont, Clinton, Darke, Greene, Hardin, Highland, Logan, Madison, Miami, Montgomery, Preble, Ross, Scioto, Shelby, Union and Warren.