Area Code +1-203-(7722000...7722999) 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 : 7722000 Subscriber Number To : 7722999 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-(7721000...7721999) next › : +1-203-(7723000...7723999) Dialling Instructions For trunk calls: 0 203 7722000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 203 7722000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 7722000 ~ 7722999 (Count: 1,000) Example: +1-203-7722000 / 0111-203-7722000 (1203-7722000 / 1-203-7722000) +1-203-7722001 / 0111-203-7722001 (1203-7722001 / 1-203-7722001) +1-203-7722002 / 0111-203-7722002 (1203-7722002 / 1-203-7722002) +1-203-7722003 / 0111-203-7722003 (1203-7722003 / 1-203-7722003) +1-203-7722004 / 0111-203-7722004 (1203-7722004 / 1-203-7722004) ...+1-203-xxxxxxx / 0111-203-xxxxxxx (1203-xxxxxxx / 1-203-xxxxxxx) ...+1-203-7722995 / 0111-203-7722995 (1203-7722995 / 1-203-7722995) +1-203-7722996 / 0111-203-7722996 (1203-7722996 / 1-203-7722996) +1-203-7722997 / 0111-203-7722997 (1203-7722997 / 1-203-7722997) +1-203-7722998 / 0111-203-7722998 (1203-7722998 / 1-203-7722998) +1-203-7722999 / 0111-203-7722999 (1203-7722999 / 1-203-7722999)