Area Code +1-203-(7797000...7797999) 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 : 7797000 Subscriber Number To : 7797999 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 : LEVEL 3 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-(7796000...7796999) next › : +1-203-(7798000...7798999) Dialling Instructions For trunk calls: 0 203 7797000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 203 7797000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 7797000 ~ 7797999 (Count: 1,000) Example: +1-203-7797000 / 0111-203-7797000 (1203-7797000 / 1-203-7797000) +1-203-7797001 / 0111-203-7797001 (1203-7797001 / 1-203-7797001) +1-203-7797002 / 0111-203-7797002 (1203-7797002 / 1-203-7797002) +1-203-7797003 / 0111-203-7797003 (1203-7797003 / 1-203-7797003) +1-203-7797004 / 0111-203-7797004 (1203-7797004 / 1-203-7797004) ...+1-203-xxxxxxx / 0111-203-xxxxxxx (1203-xxxxxxx / 1-203-xxxxxxx) ...+1-203-7797995 / 0111-203-7797995 (1203-7797995 / 1-203-7797995) +1-203-7797996 / 0111-203-7797996 (1203-7797996 / 1-203-7797996) +1-203-7797997 / 0111-203-7797997 (1203-7797997 / 1-203-7797997) +1-203-7797998 / 0111-203-7797998 (1203-7797998 / 1-203-7797998) +1-203-7797999 / 0111-203-7797999 (1203-7797999 / 1-203-7797999)