Area Code +1-231-(8850000...8859999) located in Mesick, 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 : 8850000 Subscriber Number To : 8859999 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 : ACE TEL CO OF 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 : Mesick Timezone : America/Detroit Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 44.4100 Longitude : -85.7100 ‹ previous : +1-231-(8849000...8849999) next › : +1-231-(8860000...8860999) Dialling Instructions For trunk calls: 0 231 8850000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 231 8850000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 8850000 ~ 8859999 (Count: 10,000) Example: +1-231-8850000 / 0111-231-8850000 (1231-8850000 / 1-231-8850000) +1-231-8850001 / 0111-231-8850001 (1231-8850001 / 1-231-8850001) +1-231-8850002 / 0111-231-8850002 (1231-8850002 / 1-231-8850002) +1-231-8850003 / 0111-231-8850003 (1231-8850003 / 1-231-8850003) +1-231-8850004 / 0111-231-8850004 (1231-8850004 / 1-231-8850004) ...+1-231-xxxxxxx / 0111-231-xxxxxxx (1231-xxxxxxx / 1-231-xxxxxxx) ...+1-231-8859995 / 0111-231-8859995 (1231-8859995 / 1-231-8859995) +1-231-8859996 / 0111-231-8859996 (1231-8859996 / 1-231-8859996) +1-231-8859997 / 0111-231-8859997 (1231-8859997 / 1-231-8859997) +1-231-8859998 / 0111-231-8859998 (1231-8859998 / 1-231-8859998) +1-231-8859999 / 0111-231-8859999 (1231-8859999 / 1-231-8859999)