Area Code +1-203-(2042000...2042999) 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 : 2042000 Subscriber Number To : 2042999 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 : LEVEL 3 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-(2041000...2041999) next › : +1-203-(2043000...2043999) Dialling Instructions For trunk calls: 0 203 2042000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 203 2042000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2042000 ~ 2042999 (Count: 1,000) Example: +1-203-2042000 / 0111-203-2042000 (1203-2042000 / 1-203-2042000) +1-203-2042001 / 0111-203-2042001 (1203-2042001 / 1-203-2042001) +1-203-2042002 / 0111-203-2042002 (1203-2042002 / 1-203-2042002) +1-203-2042003 / 0111-203-2042003 (1203-2042003 / 1-203-2042003) +1-203-2042004 / 0111-203-2042004 (1203-2042004 / 1-203-2042004) ...+1-203-xxxxxxx / 0111-203-xxxxxxx (1203-xxxxxxx / 1-203-xxxxxxx) ...+1-203-2042995 / 0111-203-2042995 (1203-2042995 / 1-203-2042995) +1-203-2042996 / 0111-203-2042996 (1203-2042996 / 1-203-2042996) +1-203-2042997 / 0111-203-2042997 (1203-2042997 / 1-203-2042997) +1-203-2042998 / 0111-203-2042998 (1203-2042998 / 1-203-2042998) +1-203-2042999 / 0111-203-2042999 (1203-2042999 / 1-203-2042999)