Area Code +1-203-(6560000...6569999) located in Darien, 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 : 6560000 Subscriber Number To : 6569999 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 : FRONTIER 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 : Darien Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 41.0800 Longitude : -73.4700 ‹ previous : +1-203-(6550000...6559999) next › : +1-203-(6570000...6579999) Dialling Instructions For trunk calls: 0 203 6560000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 203 6560000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 6560000 ~ 6569999 (Count: 10,000) Example: +1-203-6560000 / 0111-203-6560000 (1203-6560000 / 1-203-6560000) +1-203-6560001 / 0111-203-6560001 (1203-6560001 / 1-203-6560001) +1-203-6560002 / 0111-203-6560002 (1203-6560002 / 1-203-6560002) +1-203-6560003 / 0111-203-6560003 (1203-6560003 / 1-203-6560003) +1-203-6560004 / 0111-203-6560004 (1203-6560004 / 1-203-6560004) ...+1-203-xxxxxxx / 0111-203-xxxxxxx (1203-xxxxxxx / 1-203-xxxxxxx) ...+1-203-6569995 / 0111-203-6569995 (1203-6569995 / 1-203-6569995) +1-203-6569996 / 0111-203-6569996 (1203-6569996 / 1-203-6569996) +1-203-6569997 / 0111-203-6569997 (1203-6569997 / 1-203-6569997) +1-203-6569998 / 0111-203-6569998 (1203-6569998 / 1-203-6569998) +1-203-6569999 / 0111-203-6569999 (1203-6569999 / 1-203-6569999)