Area Code +1-309-(4760000...4769999) located in Andover, Illinois (IL), more detail is as below. Place International Dialing Code : 1 International Prefix : 011 National Prefix : 1 National Destination Code : 309 Subscriber Number From : 4760000 Subscriber Number To : 4769999 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 : FRONTIER CITIZENS 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 : Andover Timezone : America/Chicago Coordinated Universal Time : -06:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 41.2900 Longitude : -90.2900 ‹ previous : +1-309-(4759000...4759999) next › : +1-309-(4770000...4779999) Dialling Instructions For trunk calls: 0 309 4760000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 309 4760000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 4760000 ~ 4769999 (Count: 10,000) Example: +1-309-4760000 / 0111-309-4760000 (1309-4760000 / 1-309-4760000) +1-309-4760001 / 0111-309-4760001 (1309-4760001 / 1-309-4760001) +1-309-4760002 / 0111-309-4760002 (1309-4760002 / 1-309-4760002) +1-309-4760003 / 0111-309-4760003 (1309-4760003 / 1-309-4760003) +1-309-4760004 / 0111-309-4760004 (1309-4760004 / 1-309-4760004) ...+1-309-xxxxxxx / 0111-309-xxxxxxx (1309-xxxxxxx / 1-309-xxxxxxx) ...+1-309-4769995 / 0111-309-4769995 (1309-4769995 / 1-309-4769995) +1-309-4769996 / 0111-309-4769996 (1309-4769996 / 1-309-4769996) +1-309-4769997 / 0111-309-4769997 (1309-4769997 / 1-309-4769997) +1-309-4769998 / 0111-309-4769998 (1309-4769998 / 1-309-4769998) +1-309-4769999 / 0111-309-4769999 (1309-4769999 / 1-309-4769999)