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

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

    Code Territory or use Date Notes 200: not in use; available for non-geographic assignment easily recognizable code (ERC) 201: New Jersey (Bergen County and Hudson County) : 1947 ...

  3. List of Illinois area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_Illinois_area_codes

    Area code 847 exhausted its numbers quickly, so that an overlay area code, 224, was implemented in 1996 for relief. However, mandatory ten-digit dialing was not in effect until 2002. In March 2007, an overlay plan was created for NPA 630 adding area code 331, and 779 was added to 815. With the depletion of new numbers in area codes 312 and 773 ...

  4. List of area code overlays - Wikipedia

    en.wikipedia.org/wiki/List_of_area_code_overlays

    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: 331: 630: Western suburbs of Chicago: 332, 646 , 917: 212

  5. North American Numbering Plan - Wikipedia

    en.wikipedia.org/wiki/North_American_Numbering_Plan

    New Jersey received the first NPA code in the new system, area code 201. [29] The second area code, 202, was assigned to the District of Columbia. The allocation of area codes was readjusted as early as 1948 before the implementation of the plan commenced.

  6. Local access and transport area - Wikipedia

    en.wikipedia.org/.../Local_access_and_transport_area

    Map of LATAs in the US. Local access and transport area (LATA) is a term used in U.S. telecommunications regulation.It represents a geographical area of the United States under the terms of the Modification of Final Judgment (MFJ) entered by the United States District Court for the District of Columbia in Civil Action number 82-0192 or any other geographic area designated as a LATA in the ...

  7. Area codes 201 and 551 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_201_and_551

    Numbering plan areas and area codes of New Jersey Map of numbering plan area 201/551. Area codes 201 and 551 are telephone area codes in the North American Numbering Plan (NANP) in the U.S. State of New Jersey. Area code 201 was the area code assigned to the entire state of New Jersey in 1947, when the North American area code system was formed.

  8. Original North American area codes - Wikipedia

    en.wikipedia.org/wiki/Original_North_American...

    Florida 306: CA:SK: Saskatchewan: 307: US:WY: ... Illinois: 217, 312, 618, 815 Ohio: ... yet unassigned codes. The first area code (201) was given to the entire state ...

  9. Area code 201 - Wikipedia

    en.wikipedia.org/?title=Area_code_201&redirect=no

    Retrieved from "https://en.wikipedia.org/w/index.php?title=Area_code_201&oldid=489171300"