Area Code +1-203-(7173000...7173999) 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 : 7173000 Subscriber Number To : 7173999 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-(7172000...7172999) next › : +1-203-(7174000...7174999) Dialling Instructions For trunk calls: 0 203 7173000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 203 7173000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 7173000 ~ 7173999 (Count: 1,000) Example: +1-203-7173000 / 0111-203-7173000 (1203-7173000 / 1-203-7173000) +1-203-7173001 / 0111-203-7173001 (1203-7173001 / 1-203-7173001) +1-203-7173002 / 0111-203-7173002 (1203-7173002 / 1-203-7173002) +1-203-7173003 / 0111-203-7173003 (1203-7173003 / 1-203-7173003) +1-203-7173004 / 0111-203-7173004 (1203-7173004 / 1-203-7173004) ...+1-203-xxxxxxx / 0111-203-xxxxxxx (1203-xxxxxxx / 1-203-xxxxxxx) ...+1-203-7173995 / 0111-203-7173995 (1203-7173995 / 1-203-7173995) +1-203-7173996 / 0111-203-7173996 (1203-7173996 / 1-203-7173996) +1-203-7173997 / 0111-203-7173997 (1203-7173997 / 1-203-7173997) +1-203-7173998 / 0111-203-7173998 (1203-7173998 / 1-203-7173998) +1-203-7173999 / 0111-203-7173999 (1203-7173999 / 1-203-7173999)