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All boroughs were provided with the additional area code 917, arranged in an overlay plan. Introduced on February 4, 1992, [2] area code 917 was the first overlay area code in the North American Numbering Plan. When it was established, all cellphones in New York City were switched to 917, freeing up telephone numbers for additional landlines. [3]
It is common to write phone numbers as (0xx) yyyyyyy, where xx is the area code. The 0 prefix is for trunk (long-distance) dialling from within the country. International callers should dial +92xxyyyyyyy All mobile phone codes are four digits long and start with 03. All mobile numbers are seven digits long, and denote the mobile provider on a ...
Clickable map of Arizona area codes in blue (and border states) The U.S. state of Arizona is served by five telephone area codes in three numbering plan areas: Area codes 602, 480, and 623 serve the Phoenix metropolitan area. The three area codes were recombined in 2023 into an overlay complex after a 1999 split:
Costa Mesa (small portion in the 949 area code) Cypress (small portion in the 562 area code) [3] Fountain Valley; Fullerton (small portion in the 562 area code) Garden Grove; Huntington Beach (small portion in the 562 area code) Irvine (mostly in the 949 area code) La Habra (mostly in the 562 area code) La Palma (small portion in the 562 area code)
Area code 213 was one of the original North American area codes of 1947 and 323 was created in an area code split of 213 in 1998. This was the fifth split of 213 and left it serving only downtown Los Angeles and immediately adjoining neighborhoods.
Area code 619 is shown in red. Area codes 619 and 858 are telephone area codes in the North American Numbering Plan (NANP) for most of San Diego County in the U.S. state of California. Area code 619 was created by a split of area code 714 in 1982. In 1999, a part of the 619 numbering plan area was
Original numbering plan areas and area codes of Minnesota in 1952. When the American Telephone and Telegraph Company (AT&T) created the first nationwide telephone numbering plan for Operator Toll Dialing in 1947 to automate and speed the connection of long-distance calls, the United States and Canada were divided into 86 geographic numbering plan areas (NPAs) and assigned the original North ...
While this had the effect of allocating over 23 million numbers to an area of just over nine million people, under 2018 projections, the Dallas area would need a fourth area code by mid-2021. [1] Area code 945 was selected as the fourth area code in the Dallas overlay, after receiving approval from the Public Utility Commission of Texas. [2]