Area Code +1-203-(7350000...7359999) located in Ansonia-Derby, 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 : 7350000 Subscriber Number To : 7359999 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 : Ansonia-Derby Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 41.3200 Longitude : -73.0900 ‹ previous : +1-203-(7340000...7349999) next › : +1-203-(7360000...7360999) Dialling Instructions For trunk calls: 0 203 7350000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 203 7350000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 7350000 ~ 7359999 (Count: 10,000) Example: +1-203-7350000 / 0111-203-7350000 (1203-7350000 / 1-203-7350000) +1-203-7350001 / 0111-203-7350001 (1203-7350001 / 1-203-7350001) +1-203-7350002 / 0111-203-7350002 (1203-7350002 / 1-203-7350002) +1-203-7350003 / 0111-203-7350003 (1203-7350003 / 1-203-7350003) +1-203-7350004 / 0111-203-7350004 (1203-7350004 / 1-203-7350004) ...+1-203-xxxxxxx / 0111-203-xxxxxxx (1203-xxxxxxx / 1-203-xxxxxxx) ...+1-203-7359995 / 0111-203-7359995 (1203-7359995 / 1-203-7359995) +1-203-7359996 / 0111-203-7359996 (1203-7359996 / 1-203-7359996) +1-203-7359997 / 0111-203-7359997 (1203-7359997 / 1-203-7359997) +1-203-7359998 / 0111-203-7359998 (1203-7359998 / 1-203-7359998) +1-203-7359999 / 0111-203-7359999 (1203-7359999 / 1-203-7359999)