List of New Jersey area codes

Numbering plan areas and area codes of New Jersey

The U.S. state of New Jersey is divided into six distinct geographic numbering plan areas (NPAs) in the North American Numbering Plan (NANP), which are served by a total of ten area codes. All but two of the numbering plan areas are overlay complexes with two area codes each.

In 1947, when the American Telephone and Telegraph Company (AT&T) devised the first continental telephone numbering plan, the entire state was a single numbering plan area, with area code 201, the first area code of the NANP.

New Jersey numbering plan areas as shown in the July 1963 NJ Bell telephone directory, when the use of the area code became mandatory.

In 1956, the southern half of New Jersey, with the state capital and the extended Philadelphia (PA) suburbs, was assigned area code 609,[1][2][3] with a class-4 toll office closer to the corresponding toll traffic. This separated the two population centers (Philadelphia suburbs, and New York City suburbs) into distinct call routing systems for out-of-state long-distance calls. However. until July 1963, New Jersey callers could dial any telephone in the state with seven-digit dialing, without using the area code. In July 1963 central office code protection was lifted and the use of the area code was mandatory when dialing out of the caller's numbering plan area.[4]

Area
code		 Installation
year		 Parent
NPA		 Overlay Numbering plan area
201 1947 – 201/551 Northeastern New Jersey, primarily Bergen County and Hudson County
551 2001 201
609 1956 201 609/640 Trenton, Lawrenceville, Princeton, Medford, Atlantic City, Barnegat, Wildwood, Ocean City, Burlington, Cape May
640[5] 2018 609
732 1997 908 732/848 Toms River, Edison, New Brunswick, Freehold, Red Bank, Woodbridge, Perth Amboy, Carteret
848 2001 732
856 1999 609 – Camden, Cherry Hill, Glassboro, Vineland, Salem, Marlton, Clayton, Monroeville
973 1997 201 862/973 Essex County, Morris County, Passaic County, Sussex County, and small portions of Bergen and Hudson counties.
862 2001 973
908 1991 201 – Elizabeth and Union County, Somerset County, Warren County, Hunterdon County, and parts of southern and western Morris County.

See also

References

  1. ^ Department of Operation and Engineering (September 1956). "Section II". Notes on Distance Dialing. American Telephone and Telegraph Company.
  2. ^ "Brooklyn Telephone Directory 1957". New York Telephone Company. 1956-10-01. Retrieved 2023-02-15.
  3. ^ Sinks, William A. (Winter 1959). "New Numbers for Tomorrow's Telephones". Bell Telephone Monthly. 38 (4): 6.
  4. ^ "New Jersey Bell customers will begin using area codes". Redbank Register. 1963-06-20.
  5. ^ Gray, Matt. "Number, please: 10th area code approved for N.J.", NJ Advance Media for NJ.com, 2017-05-02. Retrieved 2017-05-03
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