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  2. Area codes 717 and 223 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_717_and_223

    When the American Telephone and Telegraph Company (AT&T) organized the telephone networks of North American with a universal telephone numbering plan in 1947, Pennsylvania was divided into four numbering plan areas, which received the area codes 215, 412, 717, and 814. Area code 717 was assigned to the eastern half of the Commonwealth ...

  3. List of Pennsylvania area codes - Wikipedia

    en.wikipedia.org/.../List_of_Pennsylvania_area_codes

    This is a list of telephone area codes of Pennsylvania. ... overlay codes Parent of area code splits Location 215 [a] [b] ... 717 (1998) Northeastern ...

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

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

    The North American Numbering Plan (NANP) divides the territories of its members into geographic numbering plan areas (NPAs). 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.

  5. Original North American area codes - Wikipedia

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

    215, 412, 717, 814 Texas: 214, 512, 713, 915 ... geographic location of a numbering plan area by its code alone. ... Area code handbook issued by many telephone ...

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

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

    A phone number communicates a lot --and if you dig a little deep, an area code contains information about the economic situation of its residents, too.

  7. 30 Scam Phone Numbers To Block and Area Codes To Avoid - AOL

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

    Quick Take: List of Scam Area Codes. More than 300 area codes exist in the United States alone which is a target-rich environment for phone scammers.

  8. Area codes 570 and 272 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_570_and_272

    When the American Telephone and Telegraph Company (AT&T) organized the telephone networks of North American with a universal telephone numbering plan in 1947, Pennsylvania was divided into four numbering plan areas, including area codes 215, 412, 717, and 814. Area code 717 was assigned to the eastern half of Pennsylvania, excluding the ...

  9. Telephone exchange names - Wikipedia

    en.wikipedia.org/wiki/Telephone_exchange_names

    Telephone numbers listed in 1920 in New York City having three-letter exchange prefixes. In the United States, the most-populous cities, such as New York City, Philadelphia, Boston, and Chicago, initially implemented dial service with telephone numbers consisting of three letters and four digits (3L-4N) according to a system developed by W. G. Blauvelt of AT&T in 1917. [1]