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This is a list of area codes in Connecticut: [1] 203: Covering southwestern Connecticut ( Fairfield County (except for Sherman ); New Haven County, and the towns of Bethlehem, Woodbury, as well as a small part of Roxbury in Litchfield County ); one of the original area codes enacted in 1947. 475: Overlay of 203 (December 2009)
Area codes 203 and 475 are telephone area codes in the North American Numbering Plan (NANP) for the southwestern part of the U.S. state of Connecticut. The numbering plan area (NPA) is mostly coextensive with the Connecticut portion of the New York metropolitan area, and comprises most of Fairfield County, all of New Haven County, and a small ...
Area codes 860 and 959. Area codes 860 and 959 are telephone area codes in the North American Numbering Plan in the U.S. state of Connecticut. They are arranged in an overlay plan that covers most of the state, except its southwest, which uses area codes 203 and 475 . Area code 860 was created on August 28, 1995, as a numbering plan area split ...
The original North American area codes were established by the American Telephone and Telegraph Company (AT&T) in 1947, after the demonstration of regional Operator Toll Dialing during the World War II period. The program had the goal of speeding the connecting times for long-distance calling by eliminating intermediary telephone operators.
14,846. Postcodes (total) 19,715. Statistics as at May 2020 [1] The CT postcode area, also known as the Canterbury postcode area, [2] is a group of 21 postcode districts in South East England, within 13 post towns. These cover much of east Kent, including Canterbury, Dover, Folkestone, Birchington, Broadstairs, Deal, Herne Bay, Hythe, Margate ...
0–9. Area codes 203 and 475. Area codes 860 and 959. Categories: Communications in Connecticut. Area codes in the United States by state.
The three area codes form an overlay numbering plan, and are also overlaid by area code 917 of a numbering plan area that comprises the entirety of New York City. Area code 212 is the original code assigned for all of the city in 1947. After a restriction of 212 to just Manhattan in 1985, area code 646 was assigned to Manhattan in 1999.
This is a list of the area codes in the state of Illinois and its numbering plan areas in the North American Numbering Plan.. All NPAs within Illinois. 217/447: Central Illinois, including the region running west from the Illinois-Indiana border through Danville, Effingham, Champaign–Urbana, Decatur, Springfield, Quincy until Illinois' western border with Missouri and Iowa.