Area Code +1-231-(4407000...4407999) located in Baldwin, 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 : 4407000 Subscriber Number To : 4407999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : X (X) Carrier Name : 123 NET 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 : Baldwin Timezone : America/Detroit Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 43.9000 Longitude : -85.8500 ‹ previous : +1-231-(4406000...4406999) next › : +1-231-(4408000...4408999) Dialling Instructions For trunk calls: 0 231 4407000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 231 4407000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 4407000 ~ 4407999 (Count: 1,000) Example: +1-231-4407000 / 0111-231-4407000 (1231-4407000 / 1-231-4407000) +1-231-4407001 / 0111-231-4407001 (1231-4407001 / 1-231-4407001) +1-231-4407002 / 0111-231-4407002 (1231-4407002 / 1-231-4407002) +1-231-4407003 / 0111-231-4407003 (1231-4407003 / 1-231-4407003) +1-231-4407004 / 0111-231-4407004 (1231-4407004 / 1-231-4407004) ...+1-231-xxxxxxx / 0111-231-xxxxxxx (1231-xxxxxxx / 1-231-xxxxxxx) ...+1-231-4407995 / 0111-231-4407995 (1231-4407995 / 1-231-4407995) +1-231-4407996 / 0111-231-4407996 (1231-4407996 / 1-231-4407996) +1-231-4407997 / 0111-231-4407997 (1231-4407997 / 1-231-4407997) +1-231-4407998 / 0111-231-4407998 (1231-4407998 / 1-231-4407998) +1-231-4407999 / 0111-231-4407999 (1231-4407999 / 1-231-4407999)