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In 1947, the American Telephone and Telegraph Company (AT&T) devised the first nationwide telephone numbering plan and assigned the original North American area codes. The state of California was divided into three numbering plan areas (NPAs) with distinct area codes: 213, 415, and 916, for the southern, central, and northern parts of the state ...
Area code 404 is a telephone area code in the North American Numbering Plan (NANP) for Atlanta, Georgia and its closest suburbs. This comprises roughly the area encircled by Interstate 285 . It is an enclave area code, surrounded by area code 770 , which serves most of Atlanta's suburbs.
Area codes are also assigned for non-geographic purposes. The rules for numbering NPAs do not permit the digits 0 and 1 in the leading position. [1] Area codes with two identical trailing digits are easily recognizable codes (ERC). NPAs with 9 in the second position are reserved for future format expansion.
In 1951, the number of area codes grew to ninety: the State of New York gained area code 516 on Long Island, and Southern California received area code 714, to reduce the numbering plan area of Los Angeles. [23] Area code handbook issued by many telephone companies in 1962 to promote the newly introduced direct distance dialing.
Area codes 310 and 424 are telephone area codes in the North American Numbering Plan (NANP) for the U.S. state of California. The numbering plan area includes the West Los Angeles and South Bay areas of Los Angeles County , a small portion of Ventura County , and Santa Catalina Island , which is located 26 miles (42 km) south.
However, if you get a call from a phone number or area code you don’t know, it’s likely best to avoid picking up the call and research the following before you call back:
On September 2, 2001, area code 470, was added to the 678 overlay area of area codes 404 and 770. [1] Telephone numbers from the NPA were assigned after exhaustion of area code 678. In October of 2020, the Georgia Public Service Commission approved the creation of a new overlay area code after NANPA exhaustion analyses projected shortfall of ...
0–9. Area codes 209 and 350; Area codes 213, 323, and 738; Area codes 310 and 424; Area codes 408 and 669; Area codes 415 and 628; Area codes 510 and 341