Area Code +1-406-(4920000...4929999) located in Avon, Montana (MT), more detail is as below. Place International Dialing Code : 1 International Prefix : 011 National Prefix : 1 National Destination Code : 406 Subscriber Number From : 4920000 Subscriber Number To : 4929999 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 : BLACKFOOT TEL COOP 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 : MT Region Name : Montana City : Avon Timezone : America/Denver Coordinated Universal Time : -07:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 46.6000 Longitude : -112.6000 ‹ previous : +1-406-(4919000...4919999) next › : +1-406-(4930000...4930999) Dialling Instructions For trunk calls: 0 406 4920000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 406 4920000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 4920000 ~ 4929999 (Count: 10,000) Example: +1-406-4920000 / 0111-406-4920000 (1406-4920000 / 1-406-4920000) +1-406-4920001 / 0111-406-4920001 (1406-4920001 / 1-406-4920001) +1-406-4920002 / 0111-406-4920002 (1406-4920002 / 1-406-4920002) +1-406-4920003 / 0111-406-4920003 (1406-4920003 / 1-406-4920003) +1-406-4920004 / 0111-406-4920004 (1406-4920004 / 1-406-4920004) ...+1-406-xxxxxxx / 0111-406-xxxxxxx (1406-xxxxxxx / 1-406-xxxxxxx) ...+1-406-4929995 / 0111-406-4929995 (1406-4929995 / 1-406-4929995) +1-406-4929996 / 0111-406-4929996 (1406-4929996 / 1-406-4929996) +1-406-4929997 / 0111-406-4929997 (1406-4929997 / 1-406-4929997) +1-406-4929998 / 0111-406-4929998 (1406-4929998 / 1-406-4929998) +1-406-4929999 / 0111-406-4929999 (1406-4929999 / 1-406-4929999)