Area Code +1-231-(2257000...2257999) located in Fremont, 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 : 2257000 Subscriber Number To : 2257999 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 : ACD TELECOM INC 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 : Fremont Timezone : America/Detroit Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 43.4700 Longitude : -85.9400 ‹ previous : +1-231-(2256000...2256999) next › : +1-231-(2258000...2258999) Dialling Instructions For trunk calls: 0 231 2257000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 231 2257000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2257000 ~ 2257999 (Count: 1,000) Example: +1-231-2257000 / 0111-231-2257000 (1231-2257000 / 1-231-2257000) +1-231-2257001 / 0111-231-2257001 (1231-2257001 / 1-231-2257001) +1-231-2257002 / 0111-231-2257002 (1231-2257002 / 1-231-2257002) +1-231-2257003 / 0111-231-2257003 (1231-2257003 / 1-231-2257003) +1-231-2257004 / 0111-231-2257004 (1231-2257004 / 1-231-2257004) ...+1-231-xxxxxxx / 0111-231-xxxxxxx (1231-xxxxxxx / 1-231-xxxxxxx) ...+1-231-2257995 / 0111-231-2257995 (1231-2257995 / 1-231-2257995) +1-231-2257996 / 0111-231-2257996 (1231-2257996 / 1-231-2257996) +1-231-2257997 / 0111-231-2257997 (1231-2257997 / 1-231-2257997) +1-231-2257998 / 0111-231-2257998 (1231-2257998 / 1-231-2257998) +1-231-2257999 / 0111-231-2257999 (1231-2257999 / 1-231-2257999)