Area Code +1-435-(4000000...4009999) located in Coalville, Utah (UT), more detail is as below. Place International Dialing Code : 1 International Prefix : 011 National Prefix : 1 National Destination Code : 435 Subscriber Number From : 4000000 Subscriber Number To : 4009999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : M (Mobile, Cellular) Carrier Name : ALL WEST WIRELESS 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 : UT Region Name : Utah City : Coalville Timezone : America/Denver Coordinated Universal Time : -07:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 40.9200 Longitude : -111.4000 ‹ previous : +1-435-(3935000...3935999) next › : +1-435-(4010000...4010999) Dialling Instructions For trunk calls: 0 435 4000000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 435 4000000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 4000000 ~ 4009999 (Count: 10,000) Example: +1-435-4000000 / 0111-435-4000000 (1435-4000000 / 1-435-4000000) +1-435-4000001 / 0111-435-4000001 (1435-4000001 / 1-435-4000001) +1-435-4000002 / 0111-435-4000002 (1435-4000002 / 1-435-4000002) +1-435-4000003 / 0111-435-4000003 (1435-4000003 / 1-435-4000003) +1-435-4000004 / 0111-435-4000004 (1435-4000004 / 1-435-4000004) ...+1-435-xxxxxxx / 0111-435-xxxxxxx (1435-xxxxxxx / 1-435-xxxxxxx) ...+1-435-4009995 / 0111-435-4009995 (1435-4009995 / 1-435-4009995) +1-435-4009996 / 0111-435-4009996 (1435-4009996 / 1-435-4009996) +1-435-4009997 / 0111-435-4009997 (1435-4009997 / 1-435-4009997) +1-435-4009998 / 0111-435-4009998 (1435-4009998 / 1-435-4009998) +1-435-4009999 / 0111-435-4009999 (1435-4009999 / 1-435-4009999)