4 area codes assigned to Connecticut · Eastern Time
203
Connecticut
Eastern Time
475
Connecticut
Eastern Time
860
Connecticut
Eastern Time
959
Connecticut
Eastern Time
Connecticut is served by 4 area codes in the North American Numbering Plan (NANP): 203, 475, 860, 959. All Connecticut numbers are in the Eastern Time zone. Click any area code above to see the cities and rate centers it covers, formatted tel: link examples, and to search for available phone numbers.