Area Code +1-203-(7728000...7728999) 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 : 7728000 Subscriber Number To : 7728999 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 : BANDWIDTH.COM - 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-(7727000...7727999) next › : +1-203-(7729000...7729999) Dialling Instructions For trunk calls: 0 203 7728000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 203 7728000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 7728000 ~ 7728999 (Count: 1,000) Example: +1-203-7728000 / 0111-203-7728000 (1203-7728000 / 1-203-7728000) +1-203-7728001 / 0111-203-7728001 (1203-7728001 / 1-203-7728001) +1-203-7728002 / 0111-203-7728002 (1203-7728002 / 1-203-7728002) +1-203-7728003 / 0111-203-7728003 (1203-7728003 / 1-203-7728003) +1-203-7728004 / 0111-203-7728004 (1203-7728004 / 1-203-7728004) ...+1-203-xxxxxxx / 0111-203-xxxxxxx (1203-xxxxxxx / 1-203-xxxxxxx) ...+1-203-7728995 / 0111-203-7728995 (1203-7728995 / 1-203-7728995) +1-203-7728996 / 0111-203-7728996 (1203-7728996 / 1-203-7728996) +1-203-7728997 / 0111-203-7728997 (1203-7728997 / 1-203-7728997) +1-203-7728998 / 0111-203-7728998 (1203-7728998 / 1-203-7728998) +1-203-7728999 / 0111-203-7728999 (1203-7728999 / 1-203-7728999)