Area Code +1-203-(4637000...4637999) located in Seymour, 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 : 4637000 Subscriber Number To : 4637999 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 : PAETEC 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 : Seymour Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 41.4000 Longitude : -73.0800 ‹ previous : +1-203-(4636000...4636999) next › : +1-203-(4638000...4638999) Dialling Instructions For trunk calls: 0 203 4637000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 203 4637000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 4637000 ~ 4637999 (Count: 1,000) Example: +1-203-4637000 / 0111-203-4637000 (1203-4637000 / 1-203-4637000) +1-203-4637001 / 0111-203-4637001 (1203-4637001 / 1-203-4637001) +1-203-4637002 / 0111-203-4637002 (1203-4637002 / 1-203-4637002) +1-203-4637003 / 0111-203-4637003 (1203-4637003 / 1-203-4637003) +1-203-4637004 / 0111-203-4637004 (1203-4637004 / 1-203-4637004) ...+1-203-xxxxxxx / 0111-203-xxxxxxx (1203-xxxxxxx / 1-203-xxxxxxx) ...+1-203-4637995 / 0111-203-4637995 (1203-4637995 / 1-203-4637995) +1-203-4637996 / 0111-203-4637996 (1203-4637996 / 1-203-4637996) +1-203-4637997 / 0111-203-4637997 (1203-4637997 / 1-203-4637997) +1-203-4637998 / 0111-203-4637998 (1203-4637998 / 1-203-4637998) +1-203-4637999 / 0111-203-4637999 (1203-4637999 / 1-203-4637999)