Area Code 609 History:
Area code 609 was put into service. Area code 609 was created from a split of area code 201. In 1999 area code 609 was split to form area code 856.
Counties in New Jersey within area code 609 include:
Atlantic County, Monmouth County, Cape May County, Ocean County, Burlington County, Somerset County, Middlesex County, Mercer County, and Hunterdon County.
Major cities or places in New Jersey within area code 609 include:
Area code 609 serves central and southeastern New Jersey including the larger cities and communities of Atlantic City, Ewing, Trenton and Willingboro in addition to many smaller communities within the area code 609 service area.