Area Code +1-406-(2252000...2252999) located in Boulder, 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 : 2252000 Subscriber Number To : 2252999 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. MT 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 : Boulder Timezone : America/Denver Coordinated Universal Time : -07:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 46.2400 Longitude : -112.1200 ‹ previous : +1-406-(2251000...2251999) next › : +1-406-(2253000...2253999) Dialling Instructions For trunk calls: 0 406 2252000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 406 2252000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2252000 ~ 2252999 (Count: 1,000) Example: +1-406-2252000 / 0111-406-2252000 (1406-2252000 / 1-406-2252000) +1-406-2252001 / 0111-406-2252001 (1406-2252001 / 1-406-2252001) +1-406-2252002 / 0111-406-2252002 (1406-2252002 / 1-406-2252002) +1-406-2252003 / 0111-406-2252003 (1406-2252003 / 1-406-2252003) +1-406-2252004 / 0111-406-2252004 (1406-2252004 / 1-406-2252004) ...+1-406-xxxxxxx / 0111-406-xxxxxxx (1406-xxxxxxx / 1-406-xxxxxxx) ...+1-406-2252995 / 0111-406-2252995 (1406-2252995 / 1-406-2252995) +1-406-2252996 / 0111-406-2252996 (1406-2252996 / 1-406-2252996) +1-406-2252997 / 0111-406-2252997 (1406-2252997 / 1-406-2252997) +1-406-2252998 / 0111-406-2252998 (1406-2252998 / 1-406-2252998) +1-406-2252999 / 0111-406-2252999 (1406-2252999 / 1-406-2252999)