Area Code +1-231-(3383000...3383999) 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 : 3383000 Subscriber Number To : 3383999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : V (VoIP, Location Independent fixed land line) Carrier Name : AT&T CORP. 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-(3382000...3382999) next › : +1-231-(3384000...3384999) Dialling Instructions For trunk calls: 0 231 3383000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 231 3383000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3383000 ~ 3383999 (Count: 1,000) Example: +1-231-3383000 / 0111-231-3383000 (1231-3383000 / 1-231-3383000) +1-231-3383001 / 0111-231-3383001 (1231-3383001 / 1-231-3383001) +1-231-3383002 / 0111-231-3383002 (1231-3383002 / 1-231-3383002) +1-231-3383003 / 0111-231-3383003 (1231-3383003 / 1-231-3383003) +1-231-3383004 / 0111-231-3383004 (1231-3383004 / 1-231-3383004) ...+1-231-xxxxxxx / 0111-231-xxxxxxx (1231-xxxxxxx / 1-231-xxxxxxx) ...+1-231-3383995 / 0111-231-3383995 (1231-3383995 / 1-231-3383995) +1-231-3383996 / 0111-231-3383996 (1231-3383996 / 1-231-3383996) +1-231-3383997 / 0111-231-3383997 (1231-3383997 / 1-231-3383997) +1-231-3383998 / 0111-231-3383998 (1231-3383998 / 1-231-3383998) +1-231-3383999 / 0111-231-3383999 (1231-3383999 / 1-231-3383999)