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This is a list of future area codes in the North American Numbering Plan ... California: 2026 – 2nd Qtr November 1, 2024 [16] [17] 748: 970: Colorado: 2026 – 1st Qtr
457. Louisiana (Shreveport–Bossier City, Monroe, Alexandria, Fisher, Tallulah, and most of northern Louisiana) September 25, 2025[3] will overlay area code 318 by 2026. previously a fictitious area code assigned to identify Naked DSL / Dry Loop and dedicated data lines in Saskatchewan.
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 ...
International access. 011. List of dialing codes. The North American Numbering Plan (NANP) is a telephone numbering plan for twenty-five regions in twenty countries, primarily in North America and the Caribbean. This group is historically known as World Zone 1 and has the telephone country code 1. Some North American countries, most notably ...
Lists of North American area codes. The largest telephone numbering plan in North American is the North American Numbering Plan (NANP), serving 25 regions or countries. Other countries maintain an autonomous numbering plan with distinct country codes within the international E.164 specifications by the International Telecommunication Union.
In 1950, southwest Missouri, with a new toll-center in Joplin, received area code 417, a change that provided more central offices in Kansas City. In 1951, the number of area codes grew to ninety: the State of New York gained area code 516 on Long Island, and Southern California received area code 714, to reduce the numbering plan area of Los ...
713. Greater Houston, Texas. 289, 365. 905. Golden Horseshoe region of Ontario, including suburban Toronto, Hamilton, Oshawa, and the Niagara Peninsula in Ontario. 321. 407. Central Florida. In addition to being the sole area code in the Space Coast region around the Kennedy Space Center, this is the only partial overlay area code in North America.
When the American Telephone and Telegraph Company (AT&T) devised the first comprehensive telephone numbering plan for the North American continent in 1947, the far northern part of California received area code 916, with the exclusion of the city of Sacramento, which used area code 415. California area codes were reorganized geographically in ...