Area Code +1-815-(7711000...7711999) located in Ashkum, Illinois (IL), more detail is as below. Place International Dialing Code : 1 International Prefix : 011 National Prefix : 1 National Destination Code : 815 Subscriber Number From : 7711000 Subscriber Number To : 7711999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : X (X) Carrier Name : RCN TELECOM SVCS 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 : Ashkum Timezone : America/Chicago Coordinated Universal Time : -06:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 40.8800 Longitude : -87.9500 ‹ previous : +1-815-(7710000...7710999) next › : +1-815-(7713000...7713999) Dialling Instructions For trunk calls: 0 815 7711000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 815 7711000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 7711000 ~ 7711999 (Count: 1,000) Example: +1-815-7711000 / 0111-815-7711000 (1815-7711000 / 1-815-7711000) +1-815-7711001 / 0111-815-7711001 (1815-7711001 / 1-815-7711001) +1-815-7711002 / 0111-815-7711002 (1815-7711002 / 1-815-7711002) +1-815-7711003 / 0111-815-7711003 (1815-7711003 / 1-815-7711003) +1-815-7711004 / 0111-815-7711004 (1815-7711004 / 1-815-7711004) ...+1-815-xxxxxxx / 0111-815-xxxxxxx (1815-xxxxxxx / 1-815-xxxxxxx) ...+1-815-7711995 / 0111-815-7711995 (1815-7711995 / 1-815-7711995) +1-815-7711996 / 0111-815-7711996 (1815-7711996 / 1-815-7711996) +1-815-7711997 / 0111-815-7711997 (1815-7711997 / 1-815-7711997) +1-815-7711998 / 0111-815-7711998 (1815-7711998 / 1-815-7711998) +1-815-7711999 / 0111-815-7711999 (1815-7711999 / 1-815-7711999)