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  2. Area codes 202 and 771 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_202_and_771

    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 District of Columbia was the second numbering plan area (NPA). Area code 771 was added as a second area code to the numbering plan area in April 2021 to create an all-services overlay complex.

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

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

    area code 387 is reserved as a fifth code for the region; 417: Missouri (Springfield, Joplin, Branson, Lamar, Lebanon, and most of southwestern Missouri) 1950: created from parts of the area codes 314 and 816; 418: Quebec (Quebec City, Saguenay, the Gaspé Peninsula, Côte-Nord, Chibougamau, St-Georges), Maine (Estcourt Station) 1947: 2008 ...

  4. List of time zone abbreviations - Wikipedia

    en.wikipedia.org/wiki/List_of_time_zone...

    Such designations can be ambiguous; for example, "CST" can mean China Standard Time (UTC+08:00), Cuba Standard Time (UTC−05:00), and (North American) Central Standard Time (UTC−06:00), and it is also a widely used variant of ACST (Australian Central Standard Time, UTC+9:30). Such designations predate both ISO 8601 and the internet era; in ...

  5. Area codes 301, 240, and 227 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_301,_240,_and_227

    The area code served the entire state of Maryland. Much of the Washington metropolitan area is part of a local calling area which is centered on the District's area code 202, and also extends into the suburban area in southern Maryland with 301 and Northern Virginia with area code 703. From 1947 to 1990, it was possible to dial any other ...

  6. List of area code overlays - Wikipedia

    en.wikipedia.org/wiki/List_of_area_code_overlays

    In addition to being the sole area code in the Space Coast region around the Kennedy Space Center, this is the only partial overlay area code in North America 323: 213: Central Los Angeles, incl. Downtown L.A. and Hollywood: 326: 937: Southwest Ohio: 331: 630: Western suburbs of Chicago: 332, 646 , 917: 212

  7. 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)

  8. List of time zones by country - Wikipedia

    en.wikipedia.org/wiki/List_of_time_zones_by_country

    UTC−08:00 (Zone 4 or Northwest Zone) – State of Baja California UTC−07:00 (Zone 3 or Pacific Zone) – States of Baja California Sur, Chihuahua, Nayarit, Sinaloa and Sonora UTC−06:00 (Zone 2 or Central Zone) – Most of Mexico UTC−05:00 (Zone 1 or Southeast Zone) – State of Quintana Roo: Time in Mexico: Chile: 3: UTC−06:00 ...

  9. List of Oklahoma area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_Oklahoma_area_codes

    Map of Oklahoma with area code boundaries. The state of Oklahoma is served by the following area codes: 405/572: Central Oklahoma including Oklahoma City (original area code created in 1947; 572 added as overlay on April 24, 2021 [1] [2] [3] 580: Western and southern Oklahoma (split from 405 in 1997)