Area Code +1-406-(2010000...2010999) located in Forsyth, 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 : 2010000 Subscriber Number To : 2010999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : M (Mobile, Cellular) Carrier Name : NEW CINGULAR WIRLESS 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 : Forsyth Timezone : America/Denver Coordinated Universal Time : -07:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 46.2700 Longitude : -106.6800 ‹ previous : +1-406-(2006000...2006999) next › : +1-406-(2012000...2012999) Dialling Instructions For trunk calls: 0 406 2010000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 406 2010000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2010000 ~ 2010999 (Count: 1,000) Example: +1-406-2010000 / 0111-406-2010000 (1406-2010000 / 1-406-2010000) +1-406-2010001 / 0111-406-2010001 (1406-2010001 / 1-406-2010001) +1-406-2010002 / 0111-406-2010002 (1406-2010002 / 1-406-2010002) +1-406-2010003 / 0111-406-2010003 (1406-2010003 / 1-406-2010003) +1-406-2010004 / 0111-406-2010004 (1406-2010004 / 1-406-2010004) ...+1-406-xxxxxxx / 0111-406-xxxxxxx (1406-xxxxxxx / 1-406-xxxxxxx) ...+1-406-2010995 / 0111-406-2010995 (1406-2010995 / 1-406-2010995) +1-406-2010996 / 0111-406-2010996 (1406-2010996 / 1-406-2010996) +1-406-2010997 / 0111-406-2010997 (1406-2010997 / 1-406-2010997) +1-406-2010998 / 0111-406-2010998 (1406-2010998 / 1-406-2010998) +1-406-2010999 / 0111-406-2010999 (1406-2010999 / 1-406-2010999)