Area Code +1-203-(3188000...3188999) located in Madison, 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 : 3188000 Subscriber Number To : 3188999 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 : Madison Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 41.2800 Longitude : -72.6000 ‹ previous : +1-203-(3187000...3187999) next › : +1-203-(3189000...3189999) Dialling Instructions For trunk calls: 0 203 3188000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 203 3188000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3188000 ~ 3188999 (Count: 1,000) Example: +1-203-3188000 / 0111-203-3188000 (1203-3188000 / 1-203-3188000) +1-203-3188001 / 0111-203-3188001 (1203-3188001 / 1-203-3188001) +1-203-3188002 / 0111-203-3188002 (1203-3188002 / 1-203-3188002) +1-203-3188003 / 0111-203-3188003 (1203-3188003 / 1-203-3188003) +1-203-3188004 / 0111-203-3188004 (1203-3188004 / 1-203-3188004) ...+1-203-xxxxxxx / 0111-203-xxxxxxx (1203-xxxxxxx / 1-203-xxxxxxx) ...+1-203-3188995 / 0111-203-3188995 (1203-3188995 / 1-203-3188995) +1-203-3188996 / 0111-203-3188996 (1203-3188996 / 1-203-3188996) +1-203-3188997 / 0111-203-3188997 (1203-3188997 / 1-203-3188997) +1-203-3188998 / 0111-203-3188998 (1203-3188998 / 1-203-3188998) +1-203-3188999 / 0111-203-3188999 (1203-3188999 / 1-203-3188999)