Area Code 860

The 860 Area Code (or Area Code 860) is located in the state of CT. Area Code 860 is one of the 269 3-digit telephone area codes in the USA. It covers roughly 2.17 million unique phone numbers and 7.86 million individuals near the city of Hartford

Area Code 860 History

Area code 860 was put into service. Area code 860 was created from a split of area code 203

On August 30, 2014 area code 959 was put into service as an overlay of area code 860. Effective August 8, 2014 ten digit dialing in the 860 and 959 area codes became mandatory.

Ten digit dialing (area code + seven digit number) is necessary in the 860/959 overlay because two different homes in the same geographic area can have the same seven digit phone number but each would have a different area code.

Counties in Connecticut within area code 860 include:

Following cities also use area code 860:

Baltic, Bristol, Canaan, Canterbury, Canton, Clinton, Colchester, Columbia, Cornwall, Coventry, Danielson, Deep River, East Hampton, East Hartford, Enfield, Essex, Farmington, Gales Ferry, Glastonbury, Goshen, Groton, Haddam, Hampton, Hartford, Harwinton, Jewett City, Kent, Killingworth, Lakeville, Lebanon, Litchfield, Lyme, Manchester, Middletown, Montville, Moodus, Mystic, New Britain, New London, New Milford, Niantic, Norfolk, North Grosvenordale, Norwich, Old Saybrook, Pawcatuck, Plainfield, Plainville, Putnam, Quinebaug, Rockville, Sharon, Simsbury, Southington, Stafford Springs, Storrs, Thomaston, Thompson, Torrington, Washington, Watertown, West Hartford, Willimantic, Windsor, Windsor Locks, Winsted, Woodstock.

ZIP codes in Area Code 860: