Connecticut Phone Number Lookup

Connecticut Area Codes and Their Locations

Connecticut area codes are assigned to different parts of the state to make call switching easier. Knowing Connecticut area codes by heart makes identifying local calls easier. Recognizing Connecticut local calls may also help you avoid spam calls and scammers calling with out-of-state or international numbers and claiming to be resident in the state. Residents may also choose to only answer calls bearing Connecticut area codes and identify unknown callers with reverse phone lookup searches.

The different area codes serving Connecticut and the locations they cover include:

203 - Location
475 - Location
860 - Location
959 - Location

Who Controls Connecticut Area Codes?

While the NANPA assigns new area codes to states, it is the duty of the states’ regulatory agencies to control how they are introduced. In Connecticut, the Public Utilities Regulatory Authority (PURA) oversees the telecommunications industry and they control and determine how a new area code will be introduced and used. Decisions like making the new area code a split or an overlay have to be made and PURA does that in Connecticut.

Where is Area Code 203?

Area code 203 is one of the original 86 area codes created in 1947 and it used to cover the entire state. Currently, it serves counties like Fairfield County, New Haven County, and Litchfield County. Major cities served by this area code include Bridgeport, New Haven, Stamford, Waterbury, Norwalk, Danbury, Meriden, West Haven, Stratford, Milford, Shelton, Trumbull, Naugatuck, East Haven, Westport, and Darien.

Where is Area Code 475?

Area code 475 was put into service in 2009 as an overlay on area code 203. They serve the same cities and counties.

Where is Area Code 860?

Area code 860 was created as a split from area code 203 in 1995. It covers Northeastern Connecticut and serves counties like Hartford County, New London County, Tolland County, Middlesex County, Windham County, and parts of Litchfield County. Some major cities that are also served by this area code include Hartford, Middletown, New Britain, Norwich, West Hartford, Torrington, Bristol, Winsted, East Hartford, Manchester, Newington, New London, Wethersfield, Storrs, Groton, Oakville, and Kensington.

Where is Area Code 959?

Area code 959 was put into service in 2014 as an overlay on area code 860. It covers the same area in Northeastern Connecticut.