Cairo, Ohio Area Code
Cairo, OH is officially utilizing an area code overlay in which area codes 419 and 567 serve the same geographic area. Ten digit dialing (area code + seven digit number) is necessary.
In addition to Cairo, OH area code information read more about area codes 419 and 567 details and Ohio area codes.
Cairo, OH is located in Allen County and observes the Eastern Time Zone. View our Times by Area Code tool.