East Hanover, New Jersey Area Code

East Hanover, NJ is officially utilizing an area code overlay in which area codes 862 and 973 serve the same geographic area. Ten digit dialing (area code + seven digit number) is necessary.

In addition to East Hanover, NJ area code information read more about area codes 862 and 973 details and New Jersey area codes.

East Hanover, NJ is located in Morris County and observes the Eastern Time Zone. View our Times by Area Code tool.