Herndon, Pennsylvania Area Code
Herndon, PA is officially utilizing two area codes which are area codes 570 and 272. Ten digit dialing (area code + seven digit number) is necessary.
In addition to Herndon, PA area code information read more about area codes 570 and 272 details and Pennsylvania area codes.
Herndon, PA is located in Northumberland County and observes the Eastern Time Zone. View our Times by Area Code tool.