Area Code +1-203-(7172000...7172999) located in Greenwich, 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 : 7172000 Subscriber Number To : 7172999 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 : YMAX COMMS CORP. 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 : Greenwich Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 41.0400 Longitude : -73.6100 ‹ previous : +1-203-(7171000...7171999) next › : +1-203-(7173000...7173999) Dialling Instructions For trunk calls: 0 203 7172000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 203 7172000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 7172000 ~ 7172999 (Count: 1,000) Example: +1-203-7172000 / 0111-203-7172000 (1203-7172000 / 1-203-7172000) +1-203-7172001 / 0111-203-7172001 (1203-7172001 / 1-203-7172001) +1-203-7172002 / 0111-203-7172002 (1203-7172002 / 1-203-7172002) +1-203-7172003 / 0111-203-7172003 (1203-7172003 / 1-203-7172003) +1-203-7172004 / 0111-203-7172004 (1203-7172004 / 1-203-7172004) ...+1-203-xxxxxxx / 0111-203-xxxxxxx (1203-xxxxxxx / 1-203-xxxxxxx) ...+1-203-7172995 / 0111-203-7172995 (1203-7172995 / 1-203-7172995) +1-203-7172996 / 0111-203-7172996 (1203-7172996 / 1-203-7172996) +1-203-7172997 / 0111-203-7172997 (1203-7172997 / 1-203-7172997) +1-203-7172998 / 0111-203-7172998 (1203-7172998 / 1-203-7172998) +1-203-7172999 / 0111-203-7172999 (1203-7172999 / 1-203-7172999)