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Telephone number pooling staved off exhaustion for over a decade, but by 2011, the 408 area code was forecast to require relief by the second quarter of 2012. From May to October 2011, public feedback was solicited in the area.
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 ...
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 codes), consisting of three digits that are prefixed to each local telephone number having seven digits.
Look at the area code: Start by comparing the phone number’s area code to the list of area codes you should never answer. If it’s on the list, there’s a good chance there’s a scammer on ...
An area code overlay is a numbering plan area (NPA) in the North American Numbering Plan (NANP) that has multiple area codes assigned. Overlay complexes are used to add central office prefixes in an NPA to increase the number of available telephone numbers. [1]
Pages for logged out editors learn more. Contributions; Talk; Area code 408
Map of California (in blue) and surrounding states showing telephone area codes, with this area code in red. 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.
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