Holmes, Pennsylvania Area Code
Holmes, PA is officially utilizing an area code overlay in which area codes 484 and 610 and 835 serve the same geographic area. Ten digit dialing (area code + seven digit number) is necessary.
In addition to Holmes, PA area code information read more about area codes 484 and 610 and 835 details and Pennsylvania area codes.
Holmes, PA is located in Delaware County and observes the Eastern Time Zone. View our Times by Area Code tool.