Area Code +1-231-(2823000...2823999) located in Grant, 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 : 2823000 Subscriber Number To : 2823999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : M (Mobile, Cellular) Carrier Name : NEW CINGULAR WRLS IL 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 : Grant Timezone : America/Detroit Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 43.3400 Longitude : -85.8100 ‹ previous : +1-231-(2822000...2822999) next › : +1-231-(2824000...2824999) Dialling Instructions For trunk calls: 0 231 2823000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 231 2823000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2823000 ~ 2823999 (Count: 1,000) Example: +1-231-2823000 / 0111-231-2823000 (1231-2823000 / 1-231-2823000) +1-231-2823001 / 0111-231-2823001 (1231-2823001 / 1-231-2823001) +1-231-2823002 / 0111-231-2823002 (1231-2823002 / 1-231-2823002) +1-231-2823003 / 0111-231-2823003 (1231-2823003 / 1-231-2823003) +1-231-2823004 / 0111-231-2823004 (1231-2823004 / 1-231-2823004) ...+1-231-xxxxxxx / 0111-231-xxxxxxx (1231-xxxxxxx / 1-231-xxxxxxx) ...+1-231-2823995 / 0111-231-2823995 (1231-2823995 / 1-231-2823995) +1-231-2823996 / 0111-231-2823996 (1231-2823996 / 1-231-2823996) +1-231-2823997 / 0111-231-2823997 (1231-2823997 / 1-231-2823997) +1-231-2823998 / 0111-231-2823998 (1231-2823998 / 1-231-2823998) +1-231-2823999 / 0111-231-2823999 (1231-2823999 / 1-231-2823999)