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Area codes in CT. 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)
When the American Telephone and Telegraph Company (AT&T) established the first nationwide numbering plan in 1947, Connecticut received only a single area code, 203, of the 86 original North American area codes. On August 28, 1995 the state was divided into two NPAs, reducing the area of 203 to today's extent and adding area code 860 for the ...
The North American Numbering Plan (NANP) divides the territories of its members into geographic numbering plan areas (NPAs). Each NPA is identified by one or more numbering plan area codes (NPA codes, or area codes), consisting of three digits that are prefixed to each local telephone number having seven digits.
Scam phone numbers and area codes typically involve calls you receive from numbers you don’t recognize. Often there is no customer service you can contact or law enforcement you can involve for ...
List of Connecticut area codes; 0–9. Area codes 203 and 475; Area codes 860 and 959
In August 1999, the Connecticut Department of Public Utility Control proposed an area code overlay for numbering plan area 860, adding the new area code 959. This proposal was postponed for nearly a decade due to number conservation measures; in September 2008, the overlay was scheduled within two years (as of August 30, 2011, an activation date for 959 had not been announced).
The largest telephone numbering plan in North American is the North American Numbering Plan (NANP), serving 25 regions or countries. Other countries maintain an autonomous numbering plan with distinct country codes within the international E.164 specifications by the International Telecommunication Union. Original North American area codes
In 1951, the number of area codes grew to ninety: the State of New York gained area code 516 on Long Island, and Southern California received area code 714, to reduce the numbering plan area of Los Angeles. [23] Area code handbook issued by many telephone companies in 1962 to promote the newly introduced direct distance dialing.