Area Code +1-203-(7724000...7724999) located in New Haven, 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 : 7724000 Subscriber Number To : 7724999 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 : New Haven Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 41.3000 Longitude : -72.9300 ‹ previous : +1-203-(7723000...7723999) next › : +1-203-(7725000...7725999) Dialling Instructions For trunk calls: 0 203 7724000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 203 7724000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 7724000 ~ 7724999 (Count: 1,000) Example: +1-203-7724000 / 0111-203-7724000 (1203-7724000 / 1-203-7724000) +1-203-7724001 / 0111-203-7724001 (1203-7724001 / 1-203-7724001) +1-203-7724002 / 0111-203-7724002 (1203-7724002 / 1-203-7724002) +1-203-7724003 / 0111-203-7724003 (1203-7724003 / 1-203-7724003) +1-203-7724004 / 0111-203-7724004 (1203-7724004 / 1-203-7724004) ...+1-203-xxxxxxx / 0111-203-xxxxxxx (1203-xxxxxxx / 1-203-xxxxxxx) ...+1-203-7724995 / 0111-203-7724995 (1203-7724995 / 1-203-7724995) +1-203-7724996 / 0111-203-7724996 (1203-7724996 / 1-203-7724996) +1-203-7724997 / 0111-203-7724997 (1203-7724997 / 1-203-7724997) +1-203-7724998 / 0111-203-7724998 (1203-7724998 / 1-203-7724998) +1-203-7724999 / 0111-203-7724999 (1203-7724999 / 1-203-7724999)