Area Code +1-618-(8390000...8399999) located in Olney, Illinois (IL), more detail is as below. Place International Dialing Code : 1 International Prefix : 011 National Prefix : 1 National Destination Code : 618 Subscriber Number From : 8390000 Subscriber Number To : 8399999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : M (Mobile, Cellular) Carrier Name : ALLTEL - 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 : Olney Timezone : America/Chicago Coordinated Universal Time : -06:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 38.7300 Longitude : -88.0800 ‹ previous : +1-618-(8380000...8389999) next › : +1-618-(8410000...8419999) Dialling Instructions For trunk calls: 0 618 8390000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 618 8390000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 8390000 ~ 8399999 (Count: 10,000) Example: +1-618-8390000 / 0111-618-8390000 (1618-8390000 / 1-618-8390000) +1-618-8390001 / 0111-618-8390001 (1618-8390001 / 1-618-8390001) +1-618-8390002 / 0111-618-8390002 (1618-8390002 / 1-618-8390002) +1-618-8390003 / 0111-618-8390003 (1618-8390003 / 1-618-8390003) +1-618-8390004 / 0111-618-8390004 (1618-8390004 / 1-618-8390004) ...+1-618-xxxxxxx / 0111-618-xxxxxxx (1618-xxxxxxx / 1-618-xxxxxxx) ...+1-618-8399995 / 0111-618-8399995 (1618-8399995 / 1-618-8399995) +1-618-8399996 / 0111-618-8399996 (1618-8399996 / 1-618-8399996) +1-618-8399997 / 0111-618-8399997 (1618-8399997 / 1-618-8399997) +1-618-8399998 / 0111-618-8399998 (1618-8399998 / 1-618-8399998) +1-618-8399999 / 0111-618-8399999 (1618-8399999 / 1-618-8399999)