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  2. List of Colorado area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_Colorado_area_codes

    Area code 303 is the original area code assigned to the entire state when the first nationwide telephone numbering plan was created in 1947. Today it only serves the greater Denver Metropolitan Area. Area codes 720 and 983 are overlay codes for today's 303 numbering plan area (NPA). Area code 719 serves Colorado Springs and southeastern Colorado.

  3. List of U.S. state and territory abbreviations - Wikipedia

    en.wikipedia.org/wiki/List_of_U.S._state_and...

    The purpose, rather than to standardize state abbreviations per se, was to make room in a line of no more than 23 characters for the city, the state, and the ZIP code. [4] Since 1963, only one state abbreviation has changed.

  4. Area codes 303, 720, and 983 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_303,_720,_and_983

    Area code 303 is the original area code of the NPA, as well as for the entire state, reduced in geographic extent over time. Area codes 720 and 983 were added in 1998 and 2022, respectively, to form an overlay complex for the area, meaning that the same geographic service area is served by all area codes and that ten-digit dialing is required ...

  5. Area code 719 - Wikipedia

    en.wikipedia.org/wiki/Area_code_719

    It was created in a split of area code 303 on March 5, 1988. [2] While 303 had been Colorado's sole area code for 40 years, the state's explosive growth in the second half of the 20th century made it apparent that the state would need another area code. 719 was split off when an impending number shortage meant the split could no longer be ...

  6. ZIP Code - Wikipedia

    en.wikipedia.org/wiki/ZIP_Code

    By the early 1960s, a more organized system was needed, and non-mandatory five-digit ZIP Codes were introduced nationwide on July 1, 1963. [4] [5] The USPOD issued its Publication 59: Abbreviations for Use with ZIP Code on October 1, 1963, with the list of two-letter state abbreviations which are generally written with both letters capitalized ...

  7. File:ZIP Code zones.svg - Wikipedia

    en.wikipedia.org/wiki/File:ZIP_Code_zones.svg

    Allocations that don't fit the one-digit ZIP Code zone pattern go in the "exceptions" part: 04:47, 26 June 2007: 1,251 × 878 (319 KB) Denelson83: Allocations that don't fit the one-digit ZIP Code zone pattern go in the "exceptions" part: 04:39, 26 June 2007: 1,251 × 878 (319 KB) Denelson83: 34 not really visible; using no-break spaces: 04:35 ...

  8. Colorado City, Colorado - Wikipedia

    en.wikipedia.org/wiki/Colorado_City,_Colorado

    Colorado City is a census-designated place (CDP) and post office in and governed by Pueblo County, Colorado, United States. The CDP is a part of the Pueblo, CO Metropolitan Statistical Area. The Colorado City post office has the ZIP Code 81019 (post office boxes). [4] At the United States Census 2020, the population of the Colorado City CDP was ...

  9. Federal Information Processing Standard state code - Wikipedia

    en.wikipedia.org/wiki/Federal_Information...

    The FIPS state alpha code for each U.S. states and the District of Columbia are identical to the postal abbreviations by the United States Postal Service. From September 3, 1987, the same was true of the alpha code for each of the outlying areas, with the exception of U.S. Minor Outlying Islands (UM) as the USPS routes mail for these islands ...