Area Code +1-203-(2840000...2849999) located in Wallingford, 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 : 2840000 Subscriber Number To : 2849999 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 : FRONTIER 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 : Wallingford Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 41.4600 Longitude : -72.8200 ‹ previous : +1-203-(2839000...2839999) next › : +1-203-(2850000...2850999) Dialling Instructions For trunk calls: 0 203 2840000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 203 2840000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2840000 ~ 2849999 (Count: 10,000) Example: +1-203-2840000 / 0111-203-2840000 (1203-2840000 / 1-203-2840000) +1-203-2840001 / 0111-203-2840001 (1203-2840001 / 1-203-2840001) +1-203-2840002 / 0111-203-2840002 (1203-2840002 / 1-203-2840002) +1-203-2840003 / 0111-203-2840003 (1203-2840003 / 1-203-2840003) +1-203-2840004 / 0111-203-2840004 (1203-2840004 / 1-203-2840004) ...+1-203-xxxxxxx / 0111-203-xxxxxxx (1203-xxxxxxx / 1-203-xxxxxxx) ...+1-203-2849995 / 0111-203-2849995 (1203-2849995 / 1-203-2849995) +1-203-2849996 / 0111-203-2849996 (1203-2849996 / 1-203-2849996) +1-203-2849997 / 0111-203-2849997 (1203-2849997 / 1-203-2849997) +1-203-2849998 / 0111-203-2849998 (1203-2849998 / 1-203-2849998) +1-203-2849999 / 0111-203-2849999 (1203-2849999 / 1-203-2849999)