Area Code +1-203-(7830000...7839999) located in Milford, 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 : 7830000 Subscriber Number To : 7839999 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 : Milford Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 41.2300 Longitude : -73.0600 ‹ previous : +1-203-(7820000...7829999) next › : +1-203-(7840000...7849999) Dialling Instructions For trunk calls: 0 203 7830000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 203 7830000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 7830000 ~ 7839999 (Count: 10,000) Example: +1-203-7830000 / 0111-203-7830000 (1203-7830000 / 1-203-7830000) +1-203-7830001 / 0111-203-7830001 (1203-7830001 / 1-203-7830001) +1-203-7830002 / 0111-203-7830002 (1203-7830002 / 1-203-7830002) +1-203-7830003 / 0111-203-7830003 (1203-7830003 / 1-203-7830003) +1-203-7830004 / 0111-203-7830004 (1203-7830004 / 1-203-7830004) ...+1-203-xxxxxxx / 0111-203-xxxxxxx (1203-xxxxxxx / 1-203-xxxxxxx) ...+1-203-7839995 / 0111-203-7839995 (1203-7839995 / 1-203-7839995) +1-203-7839996 / 0111-203-7839996 (1203-7839996 / 1-203-7839996) +1-203-7839997 / 0111-203-7839997 (1203-7839997 / 1-203-7839997) +1-203-7839998 / 0111-203-7839998 (1203-7839998 / 1-203-7839998) +1-203-7839999 / 0111-203-7839999 (1203-7839999 / 1-203-7839999)