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  2. Area code 406 - Wikipedia

    en.wikipedia.org/wiki/Area_code_406

    Area code 406 is the telephone area code in the North American Numbering Plan for the entire U.S. state of Montana. It has been Montana's only area code since the American Telephone and Telegraph Company created a nationwide telephone numbering plan in 1947.

  3. 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 ...

  4. 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 ...

  5. Change your calendar time zone in AOL Mail

    help.aol.com/articles/change-your-calendar-time...

    Adjust your calendar's time zone for your current location to keep your events' times accurate. 1. In AOL Mail, click the Calendar icon 2. Click Calendar full view. 3. Click Settings icon | select Calendar Options. 4. Select your time zone from the Time Zone drop-down menu under General. 5.

  6. List of telephone country codes - Wikipedia

    en.wikipedia.org/.../List_of_telephone_country_codes

    Worldwide distribution of country calling codes. Regions are coloured by first digit. Telephone country codes, originally termed International Codes by the International Telegraph and Telephone Consultative Committee (C.C.I.T.T.) in 1960, [1] but also sometimes referred to as "country dial-in codes", or historically "international subscriber dialing" (ISD) codes in the U.K., are telephone ...

  7. Area codes 408 and 669 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_408_and_669

    Until the late 1970s, central office code protection was maintained between area codes 415 and 408, so that Telephone numbers were not duplicated across, and subscribers could dial seven-digit San Francisco or Berkeley numbers without dialing an area code. Population growth, facsimile machines, and pagers caused demands for numbers to outrun ...

  8. List of New York area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_New_York_area_codes

    Area code Year Current region 212: 1947 New York City: Manhattan only; component of 212/332/646 and 917 overlays 315: 1947 Syracuse, Utica, Watertown, and north central New York; component of 315/680 overlay 329: 2023: Poughkeepsie, Middletown, Newburgh, West Point, Goshen and southeastern New York; component of 845/329 overlay 332: 2017

  9. 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