Area Code +1-203-(7210000...7210999) located in Waterbury, 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 : 7210000 Subscriber Number To : 7210999 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 : Waterbury Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 41.5600 Longitude : -73.0500 ‹ previous : +1-203-(7209000...7209999) next › : +1-203-(7211000...7211999) Dialling Instructions For trunk calls: 0 203 7210000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 203 7210000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 7210000 ~ 7210999 (Count: 1,000) Example: +1-203-7210000 / 0111-203-7210000 (1203-7210000 / 1-203-7210000) +1-203-7210001 / 0111-203-7210001 (1203-7210001 / 1-203-7210001) +1-203-7210002 / 0111-203-7210002 (1203-7210002 / 1-203-7210002) +1-203-7210003 / 0111-203-7210003 (1203-7210003 / 1-203-7210003) +1-203-7210004 / 0111-203-7210004 (1203-7210004 / 1-203-7210004) ...+1-203-xxxxxxx / 0111-203-xxxxxxx (1203-xxxxxxx / 1-203-xxxxxxx) ...+1-203-7210995 / 0111-203-7210995 (1203-7210995 / 1-203-7210995) +1-203-7210996 / 0111-203-7210996 (1203-7210996 / 1-203-7210996) +1-203-7210997 / 0111-203-7210997 (1203-7210997 / 1-203-7210997) +1-203-7210998 / 0111-203-7210998 (1203-7210998 / 1-203-7210998) +1-203-7210999 / 0111-203-7210999 (1203-7210999 / 1-203-7210999)