Area Code +1-203-(6321000...6321999) located in Naugatuck, Connecticut (CT), more detail is as below. Place International Dialing Code : 1 International Prefix : 011 National Prefix : 1 National Destination Code : 203 Subscriber Number From : 6321000 Subscriber Number To : 6321999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : CHOICE ONE COMM - CT Click here to buy United States Area Code Database Other Information Language Code : en (English) Country Number : 840 (United States) Country Code : US (United States) Region Code : CT Region Name : Connecticut City : Naugatuck Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 41.4900 Longitude : -73.0500 ‹ previous : +1-203-(6320000...6320999) next › : +1-203-(6322000...6322999) Dialling Instructions For trunk calls: 0 203 6321000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 203 6321000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 6321000 ~ 6321999 (Count: 1,000) Example: +1-203-6321000 / 0111-203-6321000 (1203-6321000 / 1-203-6321000) +1-203-6321001 / 0111-203-6321001 (1203-6321001 / 1-203-6321001) +1-203-6321002 / 0111-203-6321002 (1203-6321002 / 1-203-6321002) +1-203-6321003 / 0111-203-6321003 (1203-6321003 / 1-203-6321003) +1-203-6321004 / 0111-203-6321004 (1203-6321004 / 1-203-6321004) ...+1-203-xxxxxxx / 0111-203-xxxxxxx (1203-xxxxxxx / 1-203-xxxxxxx) ...+1-203-6321995 / 0111-203-6321995 (1203-6321995 / 1-203-6321995) +1-203-6321996 / 0111-203-6321996 (1203-6321996 / 1-203-6321996) +1-203-6321997 / 0111-203-6321997 (1203-6321997 / 1-203-6321997) +1-203-6321998 / 0111-203-6321998 (1203-6321998 / 1-203-6321998) +1-203-6321999 / 0111-203-6321999 (1203-6321999 / 1-203-6321999)