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1. • • The format of an area code is NXX, where N is any digit 2 through 9 and X is any digit 0 through 9. Initially, the middle digit of an area code had to be "0" or "1". When this restriction was removed in 1995, additional area code combinations became available. There are 800 possible combinations associated with the NXX format.
     www.nationalnanpa.com › area_codes

     NANPA : Number Resources - NPA (Area) Codes

2. People also ask

   What is a numbering plan area code?

   • Each NPA is identified by one or more numbering plan area codes ( NPA codes, or area codes ), consisting of three digits that are prefixed to each local telephone number having seven digits. A numbering plan area with multiple area codes is called an overlay. Area codes are also assigned for non-geographic purposes.

   List of North American Numbering Plan area codes - Wikipedia

   en.wikipedia.org/wiki/List_of_North_American_Numbering_Plan_area_codes

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   What are area codes?

   • This article provides an overview of area codes and lists area codes by state. In addition, it contains a list by number, as well as a list of search tools. Use this information as part of the investigation process when you need to know a code for a particular area. Area codes are telephone number codes that designate certain calling areas.

   List of Area Codes by State, by Number, and Search Tools

   www.einvestigator.com/area-codes-by-state/

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   How do I find the area code for a city?

   • The area served by the NANP is divided into smaller Numbering Plan Areas (NPAs), each identified by a three-digit NPA code, commonly called an area code. For quick information about a specific area code, use the area code search. You can also find the area code for a city or town with population greater than 20,000.

   NANPA : Number Resources - NPA (Area) Codes

   www.nationalnanpa.com/area_codes/

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   What are the quirks of the area code system?

   • The system is full of quirks, of course. Certain area codes, such as those with repeating digits, are set aside by the North American Numbering Plan Administration for special purposes. You use some of these numbers, like 800 numbers, on a regular basis. Other such numbers are being held aside from use.

   The Unexpected Logic Behind Area Codes - Atlas Obscura

   www.atlasobscura.com/articles/area-code-logic-north-american-numbering-plan

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3. en.wikipedia.org › wiki › List_of_North_AmericanList of North American Numbering Plan area codes - Wikipedia

   en.wikipedia.org › wiki › List_of_North_American

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   Each NPA is identified by one or more numbering plan area codes (NPA codes, or area codes), consisting of three digits that are prefixed to each local telephone number having seven digits. A numbering plan area with multiple area codes is called an overlay .

   Code	Territory Or Use	Date
   200	not in use; available for non-geographic ...	easily recognizable code (ERC)
   201	New Jersey ( Bergen County and Hudson ...	1947
   202	Washington, D.C.	1947
   203	Southwestern Connecticut ( Bridgeport, ...	1947

   See full list on en.wikipedia.org

4. www.einvestigator.com › area-codes-by-stateList of Area Codes for Each State by Number and by State

   www.einvestigator.com › area-codes-by-state

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   May 3, 2022 · This article includes a list of the area codes for each state in the U.S. The list is provided in both number order and by state.

5. www.areacodelocations.infoArea Codes: USA, Canada & Caribbean @AreaCodeLocations

   www.areacodelocations.info

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   Locate area codes in the USA, Canada, Bermuda and most Caribbean islands. All these area codes are regulated by the North American Numbering Plan Administrator . Comprehensive area code lists: Area codes in numerical order; Area codes by location (US state, Canadian province, etc) Choose area code to see locations covered:

6. www.areacodex.comArea codes locator - Area code lookup by number or city

   www.areacodex.com

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   Area code lookup for US cities and an area codes locator to find the location of area codes. Complete area code list for the US and Canadap

7. unitedstatesareacodes.net › united-states-area-codes-byArea Codes Sorted by Number - WWW.UnitedStatesAreaCodes

   unitedstatesareacodes.net › united-states-area-codes-by

   347 NYC - Area NY EST 646 NYC - Area NY EST 910 Wilmington NC EST 351 Concord MA EST 650 Palo Alto CA PST 912 Savannah GA EST 352 Miami FL EST 651 St. Paul MN CST 913 Kansas City KS CST 360 Olympia WA PST 657 Anaheim/Yorba Linda CA PST 914 White Plains NY EST 361 Corpus Christi TX CST 660 Sedalia MO CST 915 Abilene/El Paso TX CST

8. www.nationalnanpa.com › area_codesNANPA : Number Resources - NPA (Area) Codes

   www.nationalnanpa.com › area_codes

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   NPA (Area) Codes. The area served by the NANP is divided into smaller Numbering Plan Areas (NPAs), each identified by a three-digit NPA code, commonly called an area code. For quick information about a specific area code, use the area code search.

9. www.atlasobscura.com › articles › area-code-logicThe Unexpected Logic Behind Area Codes - Atlas Obscura

   www.atlasobscura.com › articles › area-code-logic

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   Dec 5, 2017 · States with more than one area code generally had a 1 as a second digit (hence why New York City’s most common area code is 212), and states with a single area code generally had a 0 in the...