Area Code +1-203-(7381000...7381999) located in Guilford, 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 : 7381000 Subscriber Number To : 7381999 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 : Guilford Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 41.2900 Longitude : -72.6800 ‹ previous : +1-203-(7380000...7380999) next › : +1-203-(7382000...7382999) Dialling Instructions For trunk calls: 0 203 7381000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 203 7381000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 7381000 ~ 7381999 (Count: 1,000) Example: +1-203-7381000 / 0111-203-7381000 (1203-7381000 / 1-203-7381000) +1-203-7381001 / 0111-203-7381001 (1203-7381001 / 1-203-7381001) +1-203-7381002 / 0111-203-7381002 (1203-7381002 / 1-203-7381002) +1-203-7381003 / 0111-203-7381003 (1203-7381003 / 1-203-7381003) +1-203-7381004 / 0111-203-7381004 (1203-7381004 / 1-203-7381004) ...+1-203-xxxxxxx / 0111-203-xxxxxxx (1203-xxxxxxx / 1-203-xxxxxxx) ...+1-203-7381995 / 0111-203-7381995 (1203-7381995 / 1-203-7381995) +1-203-7381996 / 0111-203-7381996 (1203-7381996 / 1-203-7381996) +1-203-7381997 / 0111-203-7381997 (1203-7381997 / 1-203-7381997) +1-203-7381998 / 0111-203-7381998 (1203-7381998 / 1-203-7381998) +1-203-7381999 / 0111-203-7381999 (1203-7381999 / 1-203-7381999)