List of New Jersey area codes

Numbering plan areas and area codes of New Jersey

The area codes in the U.S. State of New Jersey are a component of the North American Numbering Plan.

Area code 201 was the original, sole area code for New Jersey in 1947, when the American Telephone and Telegraph Company (AT&T) devised the first continental telephone numbering plan. It was also the first area code assigned in the numbering plan.

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, New Jersey was divided into two numbering plan areas, a northern area which retained the code 201, and a southern area which received the assignment of area code 609. ^{[1] [2] [3]} 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]

201: Northeastern New Jersey, primarily Bergen County and Hudson County

551: Overlays area code 201

609: Trenton, Lawrenceville, Princeton, Medford, Atlantic City, Barnegat, Wildwood, Ocean City, Burlington, Cape May

640: Overlays 609. [5]

732: Toms River, Edison, New Brunswick, Freehold, Red Bank, Woodbridge, Perth Amboy, Carteret

848: Overlays 732

856: Camden, Cherry Hill, Glassboro, Vineland, Salem, Marlton, Clayton, Monroeville.

862: Overlays 973

908: Elizabeth and Union County, Somerset County, Warren County, Hunterdon County, and parts of southern and western Morris County.

973: Essex County, Passaic County, Morris County, Sussex County, and small portions of Bergen and Hudson County.

See also

• List of North American Numbering Plan area codes

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, May 2, 2017. Accessed May 3, 2017. "Neustar Inc., the company that administers area codes for the Federal Communications Commission, projected that the 609 area code would max out its phone number options by late 2018, prompting the request for the addition of 640.... Use of the new area code will begin in 2018."