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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 ...
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. A numbering plan area with multiple area codes is called an overlay. Area codes are also assigned for non-geographic purposes. The rules for numbering NPAs ...
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 .
Area code 321; Area code 325; Area codes 330 and 234; Area code 332; Area code 334; Area codes 336 and 743; Area code 337; Area code 347; Area code 352; Area code 360; Area code 361; Area code 386; Area code 401; Area codes 402 and 531; Area code 404; Area codes 405 and 572; Area code 406; Area codes 407 and 689; Area codes 408 and 669; Area ...
When dialing a telephone number, the area code may have to be preceded by a trunk prefix or national access code for domestic calls, and for international calls by the international access code and country code. Area codes are often quoted by including the national access code. For example, a number in London may be listed as 020 7946 0321.
Proposition 35 would spell out how the tax on health insurance providers like Anthem Blue Cross and L.A. Care, known as managed care organizations, can be used.
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 ...
In 1995, The Associated Group acquired Community Mutual Insurance, a provider of Blue Cross and Blue Shield insurance plans in Ohio with over 1.9 million policy holders), then set up Anthem Blue Cross and Blue Shield. [16] [17] In 1996, The Associated Group changed its name to Anthem Insurance Company. [17]