Area Codes 201 And 551
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Area codes 201 and 551 are telephone
area code A telephone numbering plan is a type of numbering scheme used in telecommunication to assign telephone numbers to subscriber telephones or other telephony endpoints. Telephone numbers are the addresses of participants in a telephone network, rea ...
s in the
North American Numbering Plan The North American Numbering Plan (NANP) is an integrated telephone numbering plan for twenty-five regions in twenty countries, primarily in North America and the Caribbean. This group is historically known as World Zone 1, World Numbering Zone ...
(NANP) in the
U.S. State In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its so ...
of
New Jersey New Jersey is a U.S. state, state located in both the Mid-Atlantic States, Mid-Atlantic and Northeastern United States, Northeastern regions of the United States. Located at the geographic hub of the urban area, heavily urbanized Northeas ...
. Area code 201 was the area code assigned to the entire state of New Jersey in 1947, when the North American area code system was formed. After splits in 1956, 1991, and 1997, it is assigned to the northeastern portion of the state, including most of Hudson and
Bergen Bergen (, ) is a city and municipalities of Norway, municipality in Vestland county on the Western Norway, west coast of Norway. Bergen is the list of towns and cities in Norway, second-largest city in Norway after the capital Oslo. By May 20 ...
counties, bordering
New York City New York, often called New York City (NYC), is the most populous city in the United States, located at the southern tip of New York State on one of the world's largest natural harbors. The city comprises five boroughs, each coextensive w ...
. Major cities in the numbering plan area include
Bayonne Bayonne () is a city in southwestern France near the France–Spain border, Spanish border. It is a communes of France, commune and one of two subprefectures in France, subprefectures in the Pyrénées-Atlantiques departments of France, departm ...
,
Jersey City Jersey City is the List of municipalities in New Jersey, second-most populous
, Hoboken, Hackensack, Secaucus and Englewood. Area code 551 was added to this numbering plan area in 2001 in formation of an overlay. Area code 201 is also assigned for wireless services in some rate centers in the 973 and 908 numbering plan areas, such as Newark, Morristown, and
New Brunswick New Brunswick is a Provinces and Territories of Canada, province of Canada, bordering Quebec to the north, Nova Scotia to the east, the Gulf of Saint Lawrence to the northeast, the Bay of Fundy to the southeast, and the U.S. state of Maine to ...
.


History

Area code 201 was the first numbering plan area (NPA) code of the original 86 area codes when the
American Telephone and Telegraph Company AT&T Corporation, an abbreviation for its former name, the American Telephone and Telegraph Company, was an American telecommunications company that provided voice, video, data, and Internet telecommunications and professional services to busi ...
(AT&T) devised the nationwide numbering plan in 1947. It was also the first area code with
Direct Distance Dialing Direct distance dialing (DDD) is a telecommunications service in North America by which a caller may call any other subscriber outside the local calling area without operator assistance, DDD was introduced in the United States in 1951, on a tri ...
(DDD) service, when in 1951 the first direct-dialed long-distance call was made from
Englewood, New Jersey Englewood is a city in Bergen County, in the U.S. state of New Jersey. Englewood was incorporated as a city by an act of the New Jersey Legislature on March 17, 1899, from portions of Ridgefield Township and the remaining portions of Engle ...
to
Alameda, California Alameda ( ; ; Spanish for "Avenue (landscape), tree-lined path") is a city in Alameda County, California, United States, located in the East Bay (San Francisco Bay Area), East Bay region of the Bay Area. The city is built on an informal archipe ...
. Area code 201 was originally assigned to the entire state of New Jersey, despite the state's dense population, the highest in the nation. The bulk of New Jersey's population is concentrated in the large metropolitan area west of
New York City New York, often called New York City (NYC), is the most populous city in the United States, located at the southern tip of New York State on one of the world's largest natural harbors. The city comprises five boroughs, each coextensive w ...
in the northeast and the suburbs of
Philadelphia Philadelphia ( ), colloquially referred to as Philly, is the List of municipalities in Pennsylvania, most populous city in the U.S. state of Pennsylvania and the List of United States cities by population, sixth-most populous city in the Unit ...
in the southwest. The geographic coverage of numbering plan areas was based on several criteria. A numbering plan area could only have a maximum of 540 central offices; larger states needed to be divided. In addition, the call routing infrastructure had to be suitable to be centrally coordinated by only one toll center without expensive back-haul arrangements. For the latter reason, by 1956, 201 was reduced to northern New Jersey, while the area from the state capital, Trenton, southward, including the southern
Jersey Shore The Jersey Shore, commonly called the Shore by locals, is the coast, coastal region of the U.S. state of New Jersey. The term encompasses about of shore, oceanfront bordering the Atlantic Ocean, from Perth Amboy, New Jersey, Perth Amboy in the n ...
and the New Jersey side of the lower Delaware Valley, received area code 609. This separated the two population centers into distinct call routing systems for out-of-state long-distance calls. Despite the division with two area codes, all calls within the state of New Jersey were dialed without area codes until July 21, 1963, when office code protection was ended. For over thirty years, area code 201 served Bergen, Hudson,
Ocean The ocean is the body of salt water that covers approximately 70.8% of Earth. The ocean is conventionally divided into large bodies of water, which are also referred to as ''oceans'' (the Pacific, Atlantic, Indian Ocean, Indian, Southern Ocean ...
,
Essex Essex ( ) is a Ceremonial counties of England, ceremonial county in the East of England, and one of the home counties. It is bordered by Cambridgeshire and Suffolk to the north, the North Sea to the east, Kent across the Thames Estuary to the ...
, Union, Morris, Passaic, Hunterdon,
Somerset Somerset ( , ), Archaism, archaically Somersetshire ( , , ) is a Ceremonial counties of England, ceremonial county in South West England. It is bordered by the Bristol Channel, Gloucestershire, and Bristol to the north, Wiltshire to the east ...
,
Middlesex Middlesex (; abbreviation: Middx) is a Historic counties of England, former county in South East England, now mainly within Greater London. Its boundaries largely followed three rivers: the River Thames, Thames in the south, the River Lea, Le ...
,
Monmouth Monmouth ( or ; ) is a market town and community (Wales), community in Monmouthshire, Wales, situated on where the River Monnow joins the River Wye, from the Wales–England border. The population in the 2011 census was 10,508, rising from 8 ...
,
Sussex Sussex (Help:IPA/English, /ˈsʌsɪks/; from the Old English ''Sūþseaxe''; lit. 'South Saxons'; 'Sussex') is an area within South East England that was historically a kingdom of Sussex, kingdom and, later, a Historic counties of England, ...
and Warren counties. As the central region of New Jersey grew during the 1980s, the northeastern section of the state lost sizable portions of its population due to the decline of its major cities, including Newark, Paterson, Clifton, and Elizabeth. On June 8, 1991,
area code 908 Area code 908 is a telephone area code in the North American Numbering Plan (NANP) in the northern part of the U.S. state of New Jersey. The numbering plan area (NPA) comprises communities in Union County, Somerset County, northern parts of M ...
was created by a split of numbering plan area 201; it primarily serves the north-central regions of the state. Within four years, 201 was close to exhaustion once again due to the proliferation of
cell phone A mobile phone or cell phone is a portable telephone that allows users to make and receive calls over a radio frequency link while moving within a designated telephone service area, unlike fixed-location phones ( landline phones). This radio ...
s,
pager A pager, also known as a beeper or bleeper, is a Wireless communication, wireless telecommunications device that receives and displays Alphanumericals, alphanumeric or voice messages. One-way pagers can only receive messages, while response p ...
s and
fax machine Fax (short for facsimile), sometimes called telecopying or telefax (short for telefacsimile), is the telephonic transmission of scanned printed material (both text and images), normally to a telephone number connected to a printer or other out ...
s. On June 1, 1997, Essex and Passaic counties, home to Newark and Paterson, respectively, the state's largest and third-largest cities, as well as Morris and Sussex counties were split off with area code 973. This left Hudson and Bergen counties, the two most densely populated counties in the state and the closest to New York City, as the only counties in the 201 plan area. Although the 1997 split was intended as a long-term solution, demand for new numbers continued in Hudson and Bergen counties, and another area code became necessary.
Verizon Verizon Communications Inc. ( ), is an American telecommunications company headquartered in New York City. It is the world's second-largest telecommunications company by revenue and its mobile network is the largest wireless carrier in the ...
, the dominant telephone company in New Jersey, lobbied for an overlay rather than a split. Overlays were a new concept at the time, and were controversial because they required implementation of
ten-digit dialing Ten-digit dialing is a telephone dialing procedure in the countries and territories of the North American Numbering Plan (NANP). It is the practice of including the area code of a telephone number when Dialling (telephony), dialing to initiate a t ...
. However, Verizon wanted to spare its customers the burden of changing telephone numbers. Area code 551 was created in 2001 to overlay 201, along with area codes 862 and 848, which overlay area codes 973 and 732, respectively.McKay, Martha
"New Jersey Assigned New Area Codes."
''
The Record (Bergen County) ''The Record'' (also called ''The North Jersey Record'', ''The Bergen Record'', ''The Sunday Record'' (Sunday edition) and formerly ''The Bergen Evening Record'') is a newspaper in New Jersey, United States. Serving Bergen, Essex, Hudson and ...
'', April 18, 2001. Accessed August 11, 2001. "The new New Jersey area codes – 551, 356, and 848 – were announced this week and will be introduced next year in the regions currently served by 201, 973, and 732, respectively."
With the implementation of the overlays on December 1, 2001,
ten-digit dialing Ten-digit dialing is a telephone dialing procedure in the countries and territories of the North American Numbering Plan (NANP). It is the practice of including the area code of a telephone number when Dialling (telephony), dialing to initiate a t ...
became mandatory in Northern New Jersey.


See also

* List of New Jersey area codes *
List of North American Numbering Plan area codes The North American Numbering Plan (NANP) divides the territories of its members into geographic numbering plan areas (NPAs). Each NPA is identified by one or more numbering plan area codes (''NPA codes'', or ''area code A telephone numbering plan ...


References


External links

{{DEFAULTSORT:Area Codes 201 And 551 201 201 201 201 201 201 Telecommunications-related introductions in 2001 Telecommunications-related introductions in 1947