Area Code +1-203-(3447000...3447999) located in Old Greenwich, 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 : 3447000 Subscriber Number To : 3447999 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 : PEERLESS NTWK - 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 : Old Greenwich Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 41.0200 Longitude : -73.5600 ‹ previous : +1-203-(3446000...3446999) next › : +1-203-(3448000...3448999) Dialling Instructions For trunk calls: 0 203 3447000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 203 3447000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3447000 ~ 3447999 (Count: 1,000) Example: +1-203-3447000 / 0111-203-3447000 (1203-3447000 / 1-203-3447000) +1-203-3447001 / 0111-203-3447001 (1203-3447001 / 1-203-3447001) +1-203-3447002 / 0111-203-3447002 (1203-3447002 / 1-203-3447002) +1-203-3447003 / 0111-203-3447003 (1203-3447003 / 1-203-3447003) +1-203-3447004 / 0111-203-3447004 (1203-3447004 / 1-203-3447004) ...+1-203-xxxxxxx / 0111-203-xxxxxxx (1203-xxxxxxx / 1-203-xxxxxxx) ...+1-203-3447995 / 0111-203-3447995 (1203-3447995 / 1-203-3447995) +1-203-3447996 / 0111-203-3447996 (1203-3447996 / 1-203-3447996) +1-203-3447997 / 0111-203-3447997 (1203-3447997 / 1-203-3447997) +1-203-3447998 / 0111-203-3447998 (1203-3447998 / 1-203-3447998) +1-203-3447999 / 0111-203-3447999 (1203-3447999 / 1-203-3447999)