Area Code +1-203-(4188000...4188999) located in Fairfield, 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 : 4188000 Subscriber Number To : 4188999 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 : BROADWING 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 : Fairfield Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 41.1400 Longitude : -73.2600 ‹ previous : +1-203-(4187000...4187999) next › : +1-203-(4189000...4189999) Dialling Instructions For trunk calls: 0 203 4188000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 203 4188000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 4188000 ~ 4188999 (Count: 1,000) Example: +1-203-4188000 / 0111-203-4188000 (1203-4188000 / 1-203-4188000) +1-203-4188001 / 0111-203-4188001 (1203-4188001 / 1-203-4188001) +1-203-4188002 / 0111-203-4188002 (1203-4188002 / 1-203-4188002) +1-203-4188003 / 0111-203-4188003 (1203-4188003 / 1-203-4188003) +1-203-4188004 / 0111-203-4188004 (1203-4188004 / 1-203-4188004) ...+1-203-xxxxxxx / 0111-203-xxxxxxx (1203-xxxxxxx / 1-203-xxxxxxx) ...+1-203-4188995 / 0111-203-4188995 (1203-4188995 / 1-203-4188995) +1-203-4188996 / 0111-203-4188996 (1203-4188996 / 1-203-4188996) +1-203-4188997 / 0111-203-4188997 (1203-4188997 / 1-203-4188997) +1-203-4188998 / 0111-203-4188998 (1203-4188998 / 1-203-4188998) +1-203-4188999 / 0111-203-4188999 (1203-4188999 / 1-203-4188999)