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

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

    1.3 400–499. 1.4 500–599. ... Area codes with two identical trailing ... (the former country code for this possession and unorganized territory of the United States)

  3. Lists of North American area codes - Wikipedia

    en.wikipedia.org/wiki/Lists_of_North_American...

    The largest telephone numbering plan in North American is the North American Numbering Plan (NANP), serving 25 regions or countries. Other countries maintain an autonomous numbering plan with distinct country codes within the international E.164 specifications by the International Telecommunication Union.

  4. UN M49 - Wikipedia

    en.wikipedia.org/wiki/UN_M49

    Each area code is a 3-digit number which can refer to a wide variety of geographical and political ... 470, 499, 620, 674, 688 ... United States miscellaneous Pacific ...

  5. 30 Scam Phone Numbers To Block and Area Codes To Avoid - AOL

    www.aol.com/19-dangerous-scam-phone-numbers...

    More than 300 area codes exist in the United States alone which is a target-rich environment for phone scammers. The good news is that scam callers will often show up under common area codes for ...

  6. Richest and poorest area codes in the US - AOL

    www.aol.com/article/finance/2017/12/08/richest...

    To find out the 25 poorest and richest area codes, GOBankingRates used the 2015 Census Community Survey, the most recent data available, to rank cities across the nation in order of mean household ...

  7. North American Numbering Plan - Wikipedia

    en.wikipedia.org/wiki/North_American_Numbering_Plan

    Each has since been recognized as distinct numbering plan areas and area code 809 exclusively serves the Dominican Republic (along with area codes 829 and 849). The United States Pacific territories of the Northern Mariana Islands and Guam joined the NANP in 1997, and American Samoa became an NANP member in October 2004. The Dutch possession of ...

  8. Area code 406 - Wikipedia

    en.wikipedia.org/wiki/Area_code_406

    Contact us; Contribute Help; ... Area code 406 is the telephone area code in the North American Numbering Plan for the ... 499, 677; Shelby: 424, 434, 450, 460, 470 ...

  9. Area code 605 - Wikipedia

    en.wikipedia.org/wiki/Area_code_605

    Area code 605 is the telephone area code in the North American Numbering Plan for the entire U.S. state of South Dakota. The numbering plan area was designated in 1947, when the American Telephone and Telegraph Company (AT&T) devised a comprehensive telephone numbering plan for the United States and Canada. Before October 2021, area code 605 ...