Ohio, (WDTN) – About eight million number combinations are available with any given area code, but the 937 digits which covers Southwest Ohio is running out. Matt Schilling of the Public Util… ...

This map shows areas covered by the new 326 area code overlay of the 937 area code. Beginning Saturday you'll need to use 10-digit dialing if you're making calls within the 937 area code. The ...

Instead of dividing the existing 937 code geographic area, the “overlay” approach will allow the new code to go to new subscribers or new phone lines.

Those with the 937 area code will keep it, but starting Saturday, you will need to dial the area code plus the telephone number to make a call. In some cases, you'll have to dial 1, then the area ...

Long-distance calls are unaffected by the new area code. Callers need to dial 1 plus the area code and 7-digit telephone number whenever placing long-distance calls from the 937 or 326 area code.

The adoption of 326 was made due to area code 937 running out of available phone numbers in 2020. Current telephone numbers with the 937 area code will not change.

Residents and businesses in Butler, Warren, Highland, Clinton, Brown, and Adams counties will now have to dial 326 as an overlay to the 937 area code, said the Public Utilities Commission of Ohio ...

As 2020 begins, Miami Valley residents should be making preparations for a new area code coming to the region in a few months.

The new 326 area code goes into effect March 8, 2020, and the 937 area code is expected to run out of available phone numbers in 2020.

That same year, the 937 region changed to mandatory 10-digit dialing to accommodate the new area code. The 513 (and 859) area codes switched to mandatory 10-digit dialing in Oct. 2021.

As 2020 begins, Miami Valley residents should be making preparations for a new area code coming to the region in a few months.