Area Code +1-231-(5220000...5229999) located in Luther, 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 : 5220000 Subscriber Number To : 5229999 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 : LUCRE 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 : Luther Timezone : America/Detroit Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 44.0400 Longitude : -85.6800 ‹ previous : +1-231-(5200000...5209999) next › : +1-231-(5250000...5250999) Dialling Instructions For trunk calls: 0 231 5220000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 231 5220000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 5220000 ~ 5229999 (Count: 10,000) Example: +1-231-5220000 / 0111-231-5220000 (1231-5220000 / 1-231-5220000) +1-231-5220001 / 0111-231-5220001 (1231-5220001 / 1-231-5220001) +1-231-5220002 / 0111-231-5220002 (1231-5220002 / 1-231-5220002) +1-231-5220003 / 0111-231-5220003 (1231-5220003 / 1-231-5220003) +1-231-5220004 / 0111-231-5220004 (1231-5220004 / 1-231-5220004) ...+1-231-xxxxxxx / 0111-231-xxxxxxx (1231-xxxxxxx / 1-231-xxxxxxx) ...+1-231-5229995 / 0111-231-5229995 (1231-5229995 / 1-231-5229995) +1-231-5229996 / 0111-231-5229996 (1231-5229996 / 1-231-5229996) +1-231-5229997 / 0111-231-5229997 (1231-5229997 / 1-231-5229997) +1-231-5229998 / 0111-231-5229998 (1231-5229998 / 1-231-5229998) +1-231-5229999 / 0111-231-5229999 (1231-5229999 / 1-231-5229999)