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Area codes 510 and 341 are telephone area codes in the North American Numbering Plan (NANP) serving much of the East Bay in the U.S. state of California. They cover parts of Contra Costa County and western Alameda County, including the city of Oakland, but excluding Dublin, Livermore, Pleasanton, and Sunol. Area code 510 was established on ...
In 1995, area code 954 was introduced for Broward County. In 1996, area code 239 was introduced for southwest Florida and area code 352 for the areas around Gainesville and Ocala. Many new area codes were introduced in the first two decades of the 21st century, as a result of city expansion and growth of telecommunication services. [2]
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 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).
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]
Retrieved from "https://en.wikipedia.org/w/index.php?title=Area_codes_341_and_510&oldid=846955764"
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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Area code 239; Area codes 305, 786, and 645; Area code 321; Area code 352; Area code 386; Area codes 407 and 689; Area codes 561 and 728; Area code 727; Area code 728; Area codes 954 and 754; Area code 772; Area codes 813 and 656; Area codes 850 and 448; Area code 863; Area codes 904 and 324; Area code 941