Old Tappan, New Jersey Area Code

Old Tappan, NJ is officially utilizing an area code overlay in which area codes 201 and 551 serve the same geographic area. Ten digit dialing (area code + seven digit number) is necessary.

In addition to Old Tappan, NJ area code information read more about area codes 201 and 551 details and New Jersey area codes.

Old Tappan, NJ is located in Bergen County and observes the Eastern Time Zone. View our Times by Area Code tool.