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1993: split to create 905. 2001: overlaid by 647. 2013: overlaid by 437. 2025: overlaid by 942. area code 387 is reserved as a fifth code for the region. 417. Missouri (Springfield, Joplin, Branson, Lamar, Lebanon, and most of southwestern Missouri) 1950. created from parts of the area codes 314 and 816.
In 2015, area code 740 was overlaid with 220, relieving its rapid depletion. In 2016, area code 614 was overlaid with 380 in the Columbus/Central Ohio area for the same reason. In 2020, 326 was added as an all services overlay for 937. Area code 283 was added as an overlay for 513 on April 28, 2023. [2][3] Area code 436 went into service on ...
2025 – 4th Qtr [3] April 26, 2025[4][22] NPA boundary changes, overlay expansions, etc. 564. 206. Washington. 2026 – 1st Qtr. April 5, 2025[23] Other area codes that are expected to exhaust by the end of 2027 that do not have an approved relief plan: 352, 502, 520, 603, 714/657, 718/347/929, 765 and 949.
Area codes 513 and 283. Coordinates: 39°15′N 84°30′W. The regions shown in blue are in Ohio. Area codes 513 and 283 are telephone area codes in the North American Numbering Plan (NANP) for the southwest of the U.S. state of Ohio, including Cincinnati and surrounding cities, such as Forest Park, Hamilton, Lebanon, West Chester, Mason ...
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 ...
The expansion of the North American Numbering Plan (NANP) is the anticipated requirement for providing more telephone numbers to accommodate future needs beyond the pool of ten-digit telephone numbers. Ten-digit telephone numbers have been in use in the United States and Canada in long-distance telephone service since the 1950s.
The original North American area codes were established by the American Telephone and Telegraph Company (AT&T) in 1947, after the demonstration of regional Operator Toll Dialing during the World War II period. The program had the goal of speeding the connecting times for long-distance calling by eliminating intermediary telephone operators.
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. 323. 213. Central Los Angeles, incl. Downtown L.A. and Hollywood. 326. 937. Southwest Ohio.