Area Code +1-203-(7511000...7511999) located in Ansonia-Derby, 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 : 7511000 Subscriber Number To : 7511999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : M (Mobile, Cellular) Carrier Name : VERIZON WIRELESS-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 : Ansonia-Derby Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 41.3200 Longitude : -73.0900 ‹ previous : +1-203-(7510000...7510999) next › : +1-203-(7512000...7512999) Dialling Instructions For trunk calls: 0 203 7511000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 203 7511000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 7511000 ~ 7511999 (Count: 1,000) Example: +1-203-7511000 / 0111-203-7511000 (1203-7511000 / 1-203-7511000) +1-203-7511001 / 0111-203-7511001 (1203-7511001 / 1-203-7511001) +1-203-7511002 / 0111-203-7511002 (1203-7511002 / 1-203-7511002) +1-203-7511003 / 0111-203-7511003 (1203-7511003 / 1-203-7511003) +1-203-7511004 / 0111-203-7511004 (1203-7511004 / 1-203-7511004) ...+1-203-xxxxxxx / 0111-203-xxxxxxx (1203-xxxxxxx / 1-203-xxxxxxx) ...+1-203-7511995 / 0111-203-7511995 (1203-7511995 / 1-203-7511995) +1-203-7511996 / 0111-203-7511996 (1203-7511996 / 1-203-7511996) +1-203-7511997 / 0111-203-7511997 (1203-7511997 / 1-203-7511997) +1-203-7511998 / 0111-203-7511998 (1203-7511998 / 1-203-7511998) +1-203-7511999 / 0111-203-7511999 (1203-7511999 / 1-203-7511999)