Area Code +1-203-(7790000...7790999) 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 : 7790000 Subscriber Number To : 7790999 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 : CHOICE ONE 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-(7780000...7789999) next › : +1-203-(7791000...7791999) Dialling Instructions For trunk calls: 0 203 7790000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 203 7790000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 7790000 ~ 7790999 (Count: 1,000) Example: +1-203-7790000 / 0111-203-7790000 (1203-7790000 / 1-203-7790000) +1-203-7790001 / 0111-203-7790001 (1203-7790001 / 1-203-7790001) +1-203-7790002 / 0111-203-7790002 (1203-7790002 / 1-203-7790002) +1-203-7790003 / 0111-203-7790003 (1203-7790003 / 1-203-7790003) +1-203-7790004 / 0111-203-7790004 (1203-7790004 / 1-203-7790004) ...+1-203-xxxxxxx / 0111-203-xxxxxxx (1203-xxxxxxx / 1-203-xxxxxxx) ...+1-203-7790995 / 0111-203-7790995 (1203-7790995 / 1-203-7790995) +1-203-7790996 / 0111-203-7790996 (1203-7790996 / 1-203-7790996) +1-203-7790997 / 0111-203-7790997 (1203-7790997 / 1-203-7790997) +1-203-7790998 / 0111-203-7790998 (1203-7790998 / 1-203-7790998) +1-203-7790999 / 0111-203-7790999 (1203-7790999 / 1-203-7790999)