Area Code +1-231-(4390000...4399999) located in Petoskey, 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 : 4390000 Subscriber Number To : 4399999 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 : AMERITECH MICHIGAN 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 : Petoskey Timezone : America/Detroit Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 45.3700 Longitude : -84.9500 ‹ previous : +1-231-(4380000...4389999) next › : +1-231-(4400000...4400999) Dialling Instructions For trunk calls: 0 231 4390000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 231 4390000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 4390000 ~ 4399999 (Count: 10,000) Example: +1-231-4390000 / 0111-231-4390000 (1231-4390000 / 1-231-4390000) +1-231-4390001 / 0111-231-4390001 (1231-4390001 / 1-231-4390001) +1-231-4390002 / 0111-231-4390002 (1231-4390002 / 1-231-4390002) +1-231-4390003 / 0111-231-4390003 (1231-4390003 / 1-231-4390003) +1-231-4390004 / 0111-231-4390004 (1231-4390004 / 1-231-4390004) ...+1-231-xxxxxxx / 0111-231-xxxxxxx (1231-xxxxxxx / 1-231-xxxxxxx) ...+1-231-4399995 / 0111-231-4399995 (1231-4399995 / 1-231-4399995) +1-231-4399996 / 0111-231-4399996 (1231-4399996 / 1-231-4399996) +1-231-4399997 / 0111-231-4399997 (1231-4399997 / 1-231-4399997) +1-231-4399998 / 0111-231-4399998 (1231-4399998 / 1-231-4399998) +1-231-4399999 / 0111-231-4399999 (1231-4399999 / 1-231-4399999)
