Area Code +1-203-(7470000...7470999) located in New Haven, 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 : 7470000 Subscriber Number To : 7470999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : M (Mobile, Cellular) Carrier Name : NEW CINGULAR WRLS DC 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 : New Haven Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 41.3000 Longitude : -72.9300 ‹ previous : +1-203-(7460000...7469999) next › : +1-203-(7471000...7471999) Dialling Instructions For trunk calls: 0 203 7470000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 203 7470000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 7470000 ~ 7470999 (Count: 1,000) Example: +1-203-7470000 / 0111-203-7470000 (1203-7470000 / 1-203-7470000) +1-203-7470001 / 0111-203-7470001 (1203-7470001 / 1-203-7470001) +1-203-7470002 / 0111-203-7470002 (1203-7470002 / 1-203-7470002) +1-203-7470003 / 0111-203-7470003 (1203-7470003 / 1-203-7470003) +1-203-7470004 / 0111-203-7470004 (1203-7470004 / 1-203-7470004) ...+1-203-xxxxxxx / 0111-203-xxxxxxx (1203-xxxxxxx / 1-203-xxxxxxx) ...+1-203-7470995 / 0111-203-7470995 (1203-7470995 / 1-203-7470995) +1-203-7470996 / 0111-203-7470996 (1203-7470996 / 1-203-7470996) +1-203-7470997 / 0111-203-7470997 (1203-7470997 / 1-203-7470997) +1-203-7470998 / 0111-203-7470998 (1203-7470998 / 1-203-7470998) +1-203-7470999 / 0111-203-7470999 (1203-7470999 / 1-203-7470999)