Area code 732 was created on 1 June 1997, as the result of a split in New Jersey area code 908, and became mandatory on 6 December of that year. Major cities within this code include Asbury Park, Lakewood, New Brunswick, Perth Amboy, and Toms River. Area code 848 is an overlay code for this region. Map of Asbury Park in Monmouth County Asbury Park is a City located in Monmouth County, New Jersey. ... Lakewood is a census-designated place located in Ocean County, New Jersey. ... New Brunswick is a City located in Middlesex County, New Jersey, 31 miles (50 km) southwest of New York City on the Raritan River about 15 miles (24 km) from its mouth. ... Perth Amboy is a City located in Middlesex County, New Jersey. ... Map of Toms River CDP in Ocean County Toms River is a Census-designated place and unincorporated area located within Dover Township and is the county seat of Ocean County, New Jersey. ... An area code overlay is done by telephone companies, usually with the approval of government regulators, to increase the number of available phone numbers in a province, state or region. ...