Area Code +1-406-(7780000...7789999) located in Baker, 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 : 7780000 Subscriber Number To : 7789999 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 : MID-RIVERS 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 : Baker Timezone : America/Denver Coordinated Universal Time : -07:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 46.3600 Longitude : -104.2800 ‹ previous : +1-406-(7779000...7779999) next › : +1-406-(7790000...7790999) Dialling Instructions For trunk calls: 0 406 7780000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 406 7780000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 7780000 ~ 7789999 (Count: 10,000) Example: +1-406-7780000 / 0111-406-7780000 (1406-7780000 / 1-406-7780000) +1-406-7780001 / 0111-406-7780001 (1406-7780001 / 1-406-7780001) +1-406-7780002 / 0111-406-7780002 (1406-7780002 / 1-406-7780002) +1-406-7780003 / 0111-406-7780003 (1406-7780003 / 1-406-7780003) +1-406-7780004 / 0111-406-7780004 (1406-7780004 / 1-406-7780004) ...+1-406-xxxxxxx / 0111-406-xxxxxxx (1406-xxxxxxx / 1-406-xxxxxxx) ...+1-406-7789995 / 0111-406-7789995 (1406-7789995 / 1-406-7789995) +1-406-7789996 / 0111-406-7789996 (1406-7789996 / 1-406-7789996) +1-406-7789997 / 0111-406-7789997 (1406-7789997 / 1-406-7789997) +1-406-7789998 / 0111-406-7789998 (1406-7789998 / 1-406-7789998) +1-406-7789999 / 0111-406-7789999 (1406-7789999 / 1-406-7789999)