Area Code +1-217-(4381000...4381999) located in Auburn, Illinois (IL), more detail is as below. Place International Dialing Code : 1 International Prefix : 011 National Prefix : 1 National Destination Code : 217 Subscriber Number From : 4381000 Subscriber Number To : 4381999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : X (X) Carrier Name : FRONTIER NORTH - IL 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 : IL Region Name : Illinois City : Auburn Timezone : America/Chicago Coordinated Universal Time : -06:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 39.5900 Longitude : -89.7500 ‹ previous : +1-217-(4379000...4379999) next › : +1-217-(4382000...4382999) Dialling Instructions For trunk calls: 0 217 4381000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 217 4381000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 4381000 ~ 4381999 (Count: 1,000) Example: +1-217-4381000 / 0111-217-4381000 (1217-4381000 / 1-217-4381000) +1-217-4381001 / 0111-217-4381001 (1217-4381001 / 1-217-4381001) +1-217-4381002 / 0111-217-4381002 (1217-4381002 / 1-217-4381002) +1-217-4381003 / 0111-217-4381003 (1217-4381003 / 1-217-4381003) +1-217-4381004 / 0111-217-4381004 (1217-4381004 / 1-217-4381004) ...+1-217-xxxxxxx / 0111-217-xxxxxxx (1217-xxxxxxx / 1-217-xxxxxxx) ...+1-217-4381995 / 0111-217-4381995 (1217-4381995 / 1-217-4381995) +1-217-4381996 / 0111-217-4381996 (1217-4381996 / 1-217-4381996) +1-217-4381997 / 0111-217-4381997 (1217-4381997 / 1-217-4381997) +1-217-4381998 / 0111-217-4381998 (1217-4381998 / 1-217-4381998) +1-217-4381999 / 0111-217-4381999 (1217-4381999 / 1-217-4381999)