Area Code +1-203-(6699000...6699999) located in Darien, 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 : 6699000 Subscriber Number To : 6699999 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 : GLOBAL CROSSING-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 : Darien Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 41.0800 Longitude : -73.4700 ‹ previous : +1-203-(6698000...6698999) next › : +1-203-(6700000...6709999) Dialling Instructions For trunk calls: 0 203 6699000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 203 6699000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 6699000 ~ 6699999 (Count: 1,000) Example: +1-203-6699000 / 0111-203-6699000 (1203-6699000 / 1-203-6699000) +1-203-6699001 / 0111-203-6699001 (1203-6699001 / 1-203-6699001) +1-203-6699002 / 0111-203-6699002 (1203-6699002 / 1-203-6699002) +1-203-6699003 / 0111-203-6699003 (1203-6699003 / 1-203-6699003) +1-203-6699004 / 0111-203-6699004 (1203-6699004 / 1-203-6699004) ...+1-203-xxxxxxx / 0111-203-xxxxxxx (1203-xxxxxxx / 1-203-xxxxxxx) ...+1-203-6699995 / 0111-203-6699995 (1203-6699995 / 1-203-6699995) +1-203-6699996 / 0111-203-6699996 (1203-6699996 / 1-203-6699996) +1-203-6699997 / 0111-203-6699997 (1203-6699997 / 1-203-6699997) +1-203-6699998 / 0111-203-6699998 (1203-6699998 / 1-203-6699998) +1-203-6699999 / 0111-203-6699999 (1203-6699999 / 1-203-6699999)