Area Code +1-660-(9440000...9449999) located in Conception Junction, Missouri (MO), more detail is as below. Place International Dialing Code : 1 International Prefix : 011 National Prefix : 1 National Destination Code : 660 Subscriber Number From : 9440000 Subscriber Number To : 9449999 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 : GRAND RIVER MUTUAL 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 : MO Region Name : Missouri City : Conception Junction Timezone : America/Chicago Coordinated Universal Time : -06:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 40.2700 Longitude : -94.6900 ‹ previous : +1-660-(9390000...9399999) next › : +1-660-(9450000...9459999) Dialling Instructions For trunk calls: 0 660 9440000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 660 9440000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 9440000 ~ 9449999 (Count: 10,000) Example: +1-660-9440000 / 0111-660-9440000 (1660-9440000 / 1-660-9440000) +1-660-9440001 / 0111-660-9440001 (1660-9440001 / 1-660-9440001) +1-660-9440002 / 0111-660-9440002 (1660-9440002 / 1-660-9440002) +1-660-9440003 / 0111-660-9440003 (1660-9440003 / 1-660-9440003) +1-660-9440004 / 0111-660-9440004 (1660-9440004 / 1-660-9440004) ...+1-660-xxxxxxx / 0111-660-xxxxxxx (1660-xxxxxxx / 1-660-xxxxxxx) ...+1-660-9449995 / 0111-660-9449995 (1660-9449995 / 1-660-9449995) +1-660-9449996 / 0111-660-9449996 (1660-9449996 / 1-660-9449996) +1-660-9449997 / 0111-660-9449997 (1660-9449997 / 1-660-9449997) +1-660-9449998 / 0111-660-9449998 (1660-9449998 / 1-660-9449998) +1-660-9449999 / 0111-660-9449999 (1660-9449999 / 1-660-9449999)