Area Code +1-231-(3779000...3779999) located in Clam River, Michigan (MI), more detail is as below. Place International Dialing Code : 1 International Prefix : 011 National Prefix : 1 National Destination Code : 231 Subscriber Number From : 3779000 Subscriber Number To : 3779999 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 : FRONTIER NORTH - MI 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 : MI Region Name : Michigan City : Clam River Timezone : America/Detroit Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 44.9500 Longitude : -85.2700 ‹ previous : +1-231-(3778000...3778999) next › : +1-231-(3780000...3789999) Dialling Instructions For trunk calls: 0 231 3779000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 231 3779000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3779000 ~ 3779999 (Count: 1,000) Example: +1-231-3779000 / 0111-231-3779000 (1231-3779000 / 1-231-3779000) +1-231-3779001 / 0111-231-3779001 (1231-3779001 / 1-231-3779001) +1-231-3779002 / 0111-231-3779002 (1231-3779002 / 1-231-3779002) +1-231-3779003 / 0111-231-3779003 (1231-3779003 / 1-231-3779003) +1-231-3779004 / 0111-231-3779004 (1231-3779004 / 1-231-3779004) ...+1-231-xxxxxxx / 0111-231-xxxxxxx (1231-xxxxxxx / 1-231-xxxxxxx) ...+1-231-3779995 / 0111-231-3779995 (1231-3779995 / 1-231-3779995) +1-231-3779996 / 0111-231-3779996 (1231-3779996 / 1-231-3779996) +1-231-3779997 / 0111-231-3779997 (1231-3779997 / 1-231-3779997) +1-231-3779998 / 0111-231-3779998 (1231-3779998 / 1-231-3779998) +1-231-3779999 / 0111-231-3779999 (1231-3779999 / 1-231-3779999)
