Area Code +1-231-(6350000...6359999) located in Mackinaw City, 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 : 6350000 Subscriber Number To : 6359999 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 : 123 NET INC. 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 : Mackinaw City Timezone : America/Detroit Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 45.7800 Longitude : -84.7300 ‹ previous : +1-231-(6340000...6349999) next › : +1-231-(6360000...6360999) Dialling Instructions For trunk calls: 0 231 6350000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 231 6350000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 6350000 ~ 6359999 (Count: 10,000) Example: +1-231-6350000 / 0111-231-6350000 (1231-6350000 / 1-231-6350000) +1-231-6350001 / 0111-231-6350001 (1231-6350001 / 1-231-6350001) +1-231-6350002 / 0111-231-6350002 (1231-6350002 / 1-231-6350002) +1-231-6350003 / 0111-231-6350003 (1231-6350003 / 1-231-6350003) +1-231-6350004 / 0111-231-6350004 (1231-6350004 / 1-231-6350004) ...+1-231-xxxxxxx / 0111-231-xxxxxxx (1231-xxxxxxx / 1-231-xxxxxxx) ...+1-231-6359995 / 0111-231-6359995 (1231-6359995 / 1-231-6359995) +1-231-6359996 / 0111-231-6359996 (1231-6359996 / 1-231-6359996) +1-231-6359997 / 0111-231-6359997 (1231-6359997 / 1-231-6359997) +1-231-6359998 / 0111-231-6359998 (1231-6359998 / 1-231-6359998) +1-231-6359999 / 0111-231-6359999 (1231-6359999 / 1-231-6359999)