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Telephone numbers listed in 1920 in New York City having three-letter exchange prefixes. In the United States, the most-populous cities, such as New York City, Philadelphia, Boston, and Chicago, initially implemented dial service with telephone numbers consisting of three letters and four digits (3L-4N) according to a system developed by W. G. Blauvelt of AT&T in 1917. [1]
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 ...
In the following states and regions, the primary local carrier is not an RBOC: Lumen Technologies, in addition to its role as the BOC in the areas of 14 states gained from its acquisition of Qwest, Lumen serves other non-ex-Bell local exchanges in those states, as well as some in Florida and the Las Vegas metropolitan area in Nevada.
The German telephone network uses 5,200 geographical area codes, the length of which varies from two to five digits (not including the trunk code 0), with five-digit area codes being assigned only in the New States (prefix 3). In general, geographic area codes start with digits 2 to 9, whereas other non-geographic area codes (including those ...
[2] Despite the division into two numbering plan areas, all calls within the state of New Jersey were dialed without area codes until July 21, 1963. [ 3 ] [ 4 ] [ 5 ] This configuration of two area code in New Jersey remained in place for c. 35 years, until 1991, when the 201 numbering plan area was further divided to create area code 908 in ...
New Jersey is a state located in the Northeastern United States. According to the 2020 United States Census , New Jersey is the 11th most populous state with 9,288,994 inhabitants but the fifth smallest by land area , spanning 7,354.76 square miles (19,048.7 km 2 ). [ 1 ]
Numbering plan areas and area codes of New Jersey Map of numbering plan area 201/551. Area codes 201 and 551 are telephone area codes in the North American Numbering Plan (NANP) in the U.S. State of New Jersey. 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.
The first customer-dialed direct call using an area code was made on November 10, 1951, from Englewood, New Jersey, to Alameda, California. [6] Direct distance dialing (DDD) was introduced subsequently across the country. By the early 1960s, DDD had become commonplace in cities and most towns in the United States and Canada.