Area Code +1-203-(7791000...7791999) 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 : 7791000 Subscriber Number To : 7791999 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-(7790000...7790999) next › : +1-203-(7792000...7792999) Dialling Instructions For trunk calls: 0 203 7791000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 203 7791000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 7791000 ~ 7791999 (Count: 1,000) Example: +1-203-7791000 / 0111-203-7791000 (1203-7791000 / 1-203-7791000) +1-203-7791001 / 0111-203-7791001 (1203-7791001 / 1-203-7791001) +1-203-7791002 / 0111-203-7791002 (1203-7791002 / 1-203-7791002) +1-203-7791003 / 0111-203-7791003 (1203-7791003 / 1-203-7791003) +1-203-7791004 / 0111-203-7791004 (1203-7791004 / 1-203-7791004) ...+1-203-xxxxxxx / 0111-203-xxxxxxx (1203-xxxxxxx / 1-203-xxxxxxx) ...+1-203-7791995 / 0111-203-7791995 (1203-7791995 / 1-203-7791995) +1-203-7791996 / 0111-203-7791996 (1203-7791996 / 1-203-7791996) +1-203-7791997 / 0111-203-7791997 (1203-7791997 / 1-203-7791997) +1-203-7791998 / 0111-203-7791998 (1203-7791998 / 1-203-7791998) +1-203-7791999 / 0111-203-7791999 (1203-7791999 / 1-203-7791999)