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  2. National Provider Identifier - Wikipedia

    en.wikipedia.org/wiki/National_Provider_Identifier

    A National Provider Identifier (NPI) is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS). The NPI has replaced the Unique Physician Identification Number (UPIN) as the required identifier for Medicare services, and is used by other payers ...

  3. Area codes 212, 646, and 332 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_212,_646,_and_332

    The three area codes form an overlay numbering plan, and are also overlaid by area code 917 of a numbering plan area that comprises the entirety of New York City. Area code 212 is the original code assigned for all of the city in 1947. After a restriction of 212 to just Manhattan in 1985, area code 646 was assigned to Manhattan in 1999.

  4. Telephone numbering plan - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbering_plan

    When dialing a telephone number, the area code may have to be preceded by a ... (NPI). It is a number defined in ... (outside the North American Numbering Plan +1 212 ...

  5. List of New York area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_New_York_area_codes

    212: 1947 New York City: Manhattan only; overlays with 332, 646, and 917 315: 1947 Syracuse, Utica, Watertown, and north central New York; overlaid by 680. 329: 2023: Poughkeepsie, Middletown, Newburgh, West Point, Goshen and southeastern New York; overlay of 845 332: 2017: New York City: Manhattan only; overlays with 212, 646, and 917 347: 1999

  6. Area code 603 - Wikipedia

    en.wikipedia.org/wiki/Area_code_603

    Area code 603 is the sole area code for the U.S. state of New Hampshire in the North American Numbering Plan (NANP). It was created as one of the original 86 numbering plan areas in October 1947. It was created as one of the original 86 numbering plan areas in October 1947.

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

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

    Look at the area code: Start by comparing the phone number’s area code to the list of area codes you should never answer. If it’s on the list, there’s a good chance there’s a scammer on ...

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

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

    1955: split to give New Brunswick its own 506 area code; Newfoundland was added to the service area when it joined Canada in 1949. When 506 was created, Newfoundland was assigned to the new code along with New Brunswick. In 1962, Newfoundland received its own code, 709. 2014: overlaid by 782; 851 reserved as a third area code for the region. 903

  9. North American Numbering Plan expansion - Wikipedia

    en.wikipedia.org/wiki/North_American_Numbering...

    In NANP telephone number specifications, the letter N represents a numeral from 2 through 9, while the letter X represents any numeral. Thus, NXX is a number from 200 through 999, while XXXX is a range from 0000 through 9999. The first three digits of a telephone number are the numbering plan area code (NPA code, or simply NPA).