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2. List of North American Numbering Plan area codes - Wikipedia

   en.wikipedia.org/wiki/List_of_North_American...

   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.

3. Area codes 214, 469, 972, and 945 - Wikipedia

   en.wikipedia.org/wiki/Area_codes_214,_469,_972...

   Area codes 214, 469, 972, and 945 are telephone area codes in the North American Numbering Plan (NANP) for Dallas, Texas and most of the eastern portion of the Dallas–Fort Worth metroplex The area codes are assigned in an overlay complex to a single numbering plan area that was the core of one of the original area codes of 1947, area code 214.

4. List of Texas area codes - Wikipedia

   en.wikipedia.org/wiki/List_of_Texas_area_codes

   Numbering plan areas and area codes of Texas (tan). This is a list of area codes in the U.S. state of Texas. The date of establishment of each area code is indicated in parentheses: [1] 210: San Antonio area; overlays with 726 (November 1, 1992) 214: Dallas area, overlays with 469, 972, and 945 (October 1947)

5. List of future North American area codes - Wikipedia

   en.wikipedia.org/wiki/List_of_future_North...

   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.

6. North American Numbering Plan - Wikipedia

   en.wikipedia.org/wiki/North_American_Numbering_Plan

   The new numbering plan provided for 152 area codes, each with a capacity to serve as many as 540 central offices. [26] Originally, only eighty-six area codes were assigned. New Jersey received the first NPA code in the new system, area code 201. [27] The second area code, 202, was assigned to the District of Columbia. The allocation of area ...

7. Area codes 713, 281, 832, and 346 - Wikipedia

   en.wikipedia.org/wiki/Area_codes_713,_281,_832...

   Numbering plan areas and area codes of Texas with numbering plan area 281/346/713/832 highlighted. Area codes 713, 281, 832, and 346 are telephone area codes in the North American Numbering Plan (NANP) forming an overlay complex for Houston, Texas and its environs. 713 is one of the original four area codes established for Texas in 1947.