Area Code +1-307-(9228000...9228999) located in Rock Springs, Wyoming (WY), more detail is as below. Place International Dialing Code : 1 International Prefix : 011 National Prefix : 1 National Destination Code : 307 Subscriber Number From : 9228000 Subscriber Number To : 9228999 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. WY 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 : WY Region Name : Wyoming City : Rock Springs Timezone : America/Denver Coordinated Universal Time : -07:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 41.5900 Longitude : -109.2000 ‹ previous : +1-307-(9227000...9227999) next › : +1-307-(9229000...9229999) Dialling Instructions For trunk calls: 0 307 9228000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 307 9228000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 9228000 ~ 9228999 (Count: 1,000) Example: +1-307-9228000 / 0111-307-9228000 (1307-9228000 / 1-307-9228000) +1-307-9228001 / 0111-307-9228001 (1307-9228001 / 1-307-9228001) +1-307-9228002 / 0111-307-9228002 (1307-9228002 / 1-307-9228002) +1-307-9228003 / 0111-307-9228003 (1307-9228003 / 1-307-9228003) +1-307-9228004 / 0111-307-9228004 (1307-9228004 / 1-307-9228004) ...+1-307-xxxxxxx / 0111-307-xxxxxxx (1307-xxxxxxx / 1-307-xxxxxxx) ...+1-307-9228995 / 0111-307-9228995 (1307-9228995 / 1-307-9228995) +1-307-9228996 / 0111-307-9228996 (1307-9228996 / 1-307-9228996) +1-307-9228997 / 0111-307-9228997 (1307-9228997 / 1-307-9228997) +1-307-9228998 / 0111-307-9228998 (1307-9228998 / 1-307-9228998) +1-307-9228999 / 0111-307-9228999 (1307-9228999 / 1-307-9228999)