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  2. Telephone exchange names - Wikipedia

    en.wikipedia.org/wiki/Telephone_exchange_names

    Telephone numbers listed in 1920 in New York City having three-letter exchange prefixes. In the United States, the most-populous cities, such as New York City, Philadelphia, Boston, and Chicago, initially implemented dial service with telephone numbers consisting of three letters and four digits (3L-4N) according to a system developed by W. G. Blauvelt of AT&T in 1917. [1]

  3. Joseph P. Kinneary United States Courthouse - Wikipedia

    en.wikipedia.org/wiki/Joseph_P._Kinneary_United...

    The Joseph P. Kinneary United States Courthouse is a federal courthouse in Columbus, Ohio, in the city's downtown Civic Center. It was formerly known as the U.S. Post Office and Court House. It was designed by Richards, McCarty & Bulford and was completed in 1934. The supervising architect was James A. Wetmore.

  4. United States Post Office and Courthouse (Columbus, Ohio)

    en.wikipedia.org/wiki/United_States_Post_Office...

    The United States Post Office and Courthouse is a historic building in Downtown Columbus, Ohio.The structure was built from 1884 to 1887 as the city's main post office. The building also served as a courthouse of the United States District Court for the Southern District of Ohio from its completion in 1887 until 1934, when the court moved to the Joseph P. Kinneary United States Courtho

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

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

    Modern two-letter abbreviated codes for the states and territories originated in October 1963, with the issuance of Publication 59: Abbreviations for Use with ZIP Code, three months after the Post Office introduced ZIP codes in July 1963.

  6. Area codes 614 and 380 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_614_and_380

    Area codes 614 and 380 are telephone area codes in the North American Numbering Plan (NANP) for all or part of four counties in central Ohio, surrounding and including the state capital of Columbus. Area code 614 is one of the original area codes assigned for Ohio in 1947, while area code 380 is an overlay code covering the same territory.

  7. List of United States post offices - Wikipedia

    en.wikipedia.org/wiki/List_of_United_States_post...

    Several United States post offices are individually notable and have operated under the authority of the United States Post Office Department (1792–1971) or the United States Postal Service (since 1971).

  8. List of Ohio area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_Ohio_area_codes

    Central and southeastern Ohio except Columbus: December 6, 1997: 220: April 22, 2015: 614: Columbus: October 1947: 380: February 27, 2016: 937: Southwestern part of Ohio including Dayton, Springfield, public parts of Wright-Patterson Air Force Base, and areas north and east of the Cincinnati metropolitan area: September 28, 1996: 326: March 8 ...

  9. United States Postal Service - Wikipedia

    en.wikipedia.org/wiki/United_States_Postal_Service

    The full eagle logo, used in various versions from 1970 to 1993. The United States Postal Service (USPS), also known as the Post Office, U.S. Mail, or simply the Postal Service, is an independent agency of the executive branch of the United States federal government responsible for providing postal service in the United States, its insular areas and associated states.