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Area code 559 is a telephone area code in the North American Numbering Plan for the central San Joaquin Valley in central California. The numbering plan area includes the counties of Fresno, Madera, Kings, and Tulare, an area largely coextensive with the Fresno and Visalia-Porterville metropolitan areas. The area code was placed in service in ...
Country code: 52; International call prefix: 00; Trunk Prefix: none; The telecommunication services of Mexico are provided by a division of the telephone numbering plan into groups of area codes for the following regions: [1]
This is a list of future area codes in the North American Numbering Plan (NANP) that are in the planning stages for relief of central office code exhaustion in the given numbering plan areas (NPAs). The dates are subject to change during implementation as published in the official NANP Administrator Planning Letters .
If this map is the primary area code map of California (master map), no area code appears in red. Map is correct as of 2023-07-02. To make changes, updates, and replacing the lesser maps (the ones for a specific area code block), this file uses CSS to define the colors for each region.
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 ...
The 500–599 range of area codes in Mexico is reserved for the states of Mexico and Hidalgo. The country code of Mexico is +52. The country code of Mexico is +52. [ 1 ]
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.
Since the 1960s, the Bell System had already established technical infrastructure to include Mexico in the NANP routing system, and continued to maintain special dialing arrangement using NANP area codes 903 (northwest Mexico) and 905 (Mexico City) from the US into Mexico, [6] because of high community interest into the 1980s. Use of the area ...