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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 409 is a telephone area code in the North American Numbering Plan (NANP) for the U.S. state of Texas. The numbering plan area comprises the Beaumont and Galveston areas. It was created on March 19, 1983, in an area code split of area code 713 , the first since 619 split from 714 four months earlier.
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; Area code 530; Area code 559; Area code 562; Area codes 619 and 858; Area code 626; Area code 650; Area codes 714 and 657; Area code 661; Area codes 707 and 369; Area codes 818 and 747; Area codes 760 and 442; Area codes ...
A geographic area code split had been approved by the California Public Utilities Commission (CPUC) which would install area code 831 for a new numbering plan area comprising the communities of Santa Cruz, Salinas, Monterey, and Hollister. Area code 408 would be retained in Sunnyvale, San Jose, Los Gatos, and Gilroy.
Area code 401 is the sole telephone area code in the North American Numbering Plan (NANP) for the U.S. state of Rhode Island. 401 is one of the original North American area codes, which were established in 1947. Area code 401 is not projected to exhaust its supply of vacant central office codes until 2055. [1]
Major cities in the area codes include Napa, Sebastopol, Vallejo, Benicia, Fairfield, Santa Rosa, Windsor, Healdsburg, Rohnert Park, Petaluma, Fort Bragg, Rio Vista, Crescent City, Eureka, Clearlake, Vacaville, Dixon, and Ukiah. 707 was created by a split of area code 415 on March 1, 1959. Area code 369 was added to the numbering plan area (NPA ...
Area code 818 was created in a split from area code 213 on January 7, 1984. On June 14, 1997, 818 was reduced in size to create a separate numbering plan area (NPA) for most of the San Gabriel Valley with area code 626. On May 18, 2009, area code 818 was overlaid with area code 747.
On December 31, 2005, customers began dialing 1 + area code + seven-digit number whenever a call is placed by a caller in the 310 or 424 area code to any other area code, including 310 to 424 or 424 to 310. After July 26, 2006, customers were required to use the new 1 + area code + seven-digit number dialing procedure for all calls, although ...