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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.
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, respectively. [ 1 ] In 1950, the boundaries of the numbering plan area were redrawn to produce a division of the northern and central parts along a north–south ...
New York City: Manhattan only; overlays with 212, 646, and 917 347: 1999: New York City: all except Manhattan; overlays with 718, 917, and 929 363: 2023 Nassau County; overlay of 516 516: 1951 Nassau County; overlaid with 363 as of January 2023 518: 1947 Albany, Glens Falls, Plattsburgh, Saratoga Springs and northeastern New York; overlaid by ...
Toll-free telephone numbers in the North American Numbering Plan have the area code prefix 800, 833, 844, 855, 866, 877, or 888. Additionally, area codes 822, 880 through 887, and 889 are reserved for toll-free use in the future. 811 is excluded because it is a special dialing code in the group NXX for various other purposes.
A map of Utah with the 801 and 385 area code overlay highlighted in red The original 801 area code, as shown on a 1952 map. Area codes 801 and 385 are telephone area codes in the North American Numbering Plan (NANP) serving Salt Lake City and the four surrounding counties of the Wasatch Front in north-central Utah .
The new area code was one of the first area codes not serving an entire state, but having the digit 0 in the middle position of the code. It was the only new area code created in Illinois between 1947 and the 1989 creation of area code 708. [2] In preparation of an overlay plan with the new area code 779, all calls from the 815 area needed to ...
Later in 1995, the Florida Public Service Commission planned a three-way split to relieve the overcrowded 904 area code. In this plan, the Jacksonville area would be reassigned to the proposed area code 234, while the Daytona Beach LATA would be assigned area code 386. The Pensacola, Panama City, and Tallahassee areas would have kept area code 904.
Area codes 213, 323, and 738 are telephone area codes in the North American Numbering Plan (NANP) for the U.S. state of California. They are assigned in an overlay complex to a numbering plan area (NPA) that comprises, roughly, the area of downtown Los Angeles City , as well as several southeast Los Angeles County cities, such as Bell and ...