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New area code Affected NPA Jurisdiction Projected exhaust date Effective date 257: 236/672/778, 604, 250: British Columbia: 2025 – 4th Qtr May 24, 2025: 357: 559: California: 2025 – 3rd Qtr March 26, 2025: 457: 318: Louisiana: 2026 – 1st Qtr September 25, 2025: 471: 662: Mississippi: 2026 – 3rd Qtr TBD 483: 334: Alabama: 2026 – 3rd ...
this was the first part of North America to have its code changed three times: from 213 to 714 1951: to 619 in 1982, and to 760 in 1997. was to have originally split off the portion of 760 serving San Diego County to a new 442 area code in late 2008/early 2009; that plan was cancelled. 2009: overlaid by 442. 761.
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.
Thus, NXX is a number from 200 through 999, while XXXX is a range from 0000 through 9999. The first three digits of a telephone number are the numbering plan area code (NPA code, or simply NPA). The next three, NXX, identify the central office and the last four digits are the line number of an individual office.
NPA Year Current region 212: 1947 New York City: Manhattan only; overlays with 332, 646, and 917 315: 1947 Syracuse, Utica, Watertown, and north central New York; overlaid by 680. 329: 2023: Poughkeepsie, Middletown, Newburgh, West Point, Goshen and southeastern New York; overlay of 845 332: 2017: New York City: Manhattan only; overlays with ...
often denoted NPA: Numbering plan area code The first NYX block is the numbering plan area code. When the second and third digits are the same, the code is an easily recognizable code (ERC). ERCs designate special services; e.g., 800 for toll-free service. The NANP is not assigning area codes with 9 as the second digit.
Interchangeable numbering plan area (NPA) codes and central office codes are codes that permit any of the ten numerals in the middle position of the area code and the central office code, which both are three-digit numbers. [1] [2] This change in numbering format was implemented first for central office codes by 1973, which eliminated the ...
This makes the fastest-dialing area code 212 (5 total clicks), followed by 312 and 213 (6 clicks). The area code 605 is much slower than these at 21 clicks. Many large US cities generally had fast-dialing area codes with the middle digit 1. Touch-tone dialing, introduced later, eliminated the wait.