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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)
Connecticut state map with area code 860 in red. 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 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 ...
The ANSI alphabetic state code is the same as the USPS state code except for U.S. Minor Outlying Islands, which have an ANSI code "UM" but no USPS code—and U.S. Military Mail locations, which have USPS codes ("AA", "AE", "AP") but no ANSI code.
Pages in category "Area codes in Connecticut" The following 3 pages are in this category, out of 3 total. This list may not reflect recent changes. ...
split of 405 and to give Oklahoma two area codes, one centered on Oklahoma City and the other centered on Tulsa; 2011: overlaid by 539; 919: North Carolina (the Research Triangle, including Raleigh, the state capital city; Durham, Cary, and Chapel Hill; and Goldsboro and other parts of north-central North Carolina) 1954
The codes were assigned by NIST and each uniquely identified a state, the District of Columbia, or an outlying area of the U.S. These codes were used by the U.S. Census Bureau , the Department of Agriculture to form milk-processing plant numbers, some cash registers during check approval, and in the Emergency Alert System (EAS).
Connecticut: 09003 Hartford County [k] 09005 Litchfield County [k] 09007 Middlesex County [k] 09009 New Haven County [k] 09011 New London County [k] 09013 Tolland County [k] 09015 Windham County [k] 09110 Capitol Planning Region [l] 09120 Greater Bridgeport Planning Region [l] 09130 Lower Connecticut River Valley Planning Region [l] 09140