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  2. Area codes 202 and 771 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_202_and_771

    The red area is the District of Columbia, served by area codes 202 and 771. Area codes 202 and 771 are telephone area codes in the North American Numbering Plan (NANP) for Washington, D.C. Area code 202 was one of the original North American area codes established in October 1947 by AT&T. After the State of New Jersey with area code 201, the ...

  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. In 1947, the American Telephone and Telegraph Company divided Pennsylvania into four numbering plan areas (NPAs) and assigned distinct area codes for each. Since 1995, several relief actions in form of area code splits and overlays have expanded the list of area

  4. Category:Area codes in Washington, D.C. - Wikipedia

    en.wikipedia.org/wiki/Category:Area_codes_in...

    Pages in category "Area codes in Washington, D.C." ... 0–9. Area codes 202 and 771 This page was last edited on 27 August 2020, at 02:21 (UTC). ...

  5. 202 area code - Wikipedia

    en.wikipedia.org/?title=202_area_code&redirect=no

    Retrieved from "https://en.wikipedia.org/w/index.php?title=202_area_code&oldid=1043455496"This page was last edited on 10 September 2021, at 05:23 (UTC) (UTC)

  6. Category : Area codes in the United States by state or territory

    en.wikipedia.org/wiki/Category:Area_codes_in_the...

    Area codes in Pennsylvania (11 P) R. Area codes in Rhode Island (1 P) S. ... Area codes in Washington (state) (7 P) Area codes in West Virginia (1 P)

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

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

    2023: returned to the pool of area codes available for future area code relief; 457: Louisiana (Shreveport–Bossier City, Monroe, Alexandria, Fisher, Tallulah, and most of northern Louisiana) September 25, 2025 [3] to be overlaid on 318; previously a fictitious area code assigned to identify Naked DSL/Dry Loop and dedicated data lines in ...

  8. List of area code overlays - Wikipedia

    en.wikipedia.org/wiki/List_of_area_code_overlays

    Washington, D.C. suburbs and panhandle of Maryland: 249: 705: Northeastern and central Ontario: 267, 445: 215: Philadelphia, Pennsylvania area and a small portion of its Pennsylvania suburbs 272: 570: Northeastern Pennsylvania, including the cities of Scranton, Wilkes-Barre, and Williamsport: 279: 916: Sacramento, California and surrounding ...

  9. Area codes 410, 443, and 667 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_410,_443,_and_667

    Despite the state being home to two large metropolitan areas, Baltimore and the Maryland suburbs of Washington, D.C. (area code 202), the state received only one area code. This made Maryland one of the most-populous states to be served by a single area code.