Area Code +1-309-(3291000...3291999) located in Astoria, 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 : 3291000 Subscriber Number To : 3291999 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 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 : Astoria Timezone : America/Chicago Coordinated Universal Time : -06:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 40.2300 Longitude : -90.3600 ‹ previous : +1-309-(3266000...3266999) next › : +1-309-(3292000...3292999) Dialling Instructions For trunk calls: 0 309 3291000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 309 3291000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3291000 ~ 3291999 (Count: 1,000) Example: +1-309-3291000 / 0111-309-3291000 (1309-3291000 / 1-309-3291000) +1-309-3291001 / 0111-309-3291001 (1309-3291001 / 1-309-3291001) +1-309-3291002 / 0111-309-3291002 (1309-3291002 / 1-309-3291002) +1-309-3291003 / 0111-309-3291003 (1309-3291003 / 1-309-3291003) +1-309-3291004 / 0111-309-3291004 (1309-3291004 / 1-309-3291004) ...+1-309-xxxxxxx / 0111-309-xxxxxxx (1309-xxxxxxx / 1-309-xxxxxxx) ...+1-309-3291995 / 0111-309-3291995 (1309-3291995 / 1-309-3291995) +1-309-3291996 / 0111-309-3291996 (1309-3291996 / 1-309-3291996) +1-309-3291997 / 0111-309-3291997 (1309-3291997 / 1-309-3291997) +1-309-3291998 / 0111-309-3291998 (1309-3291998 / 1-309-3291998) +1-309-3291999 / 0111-309-3291999 (1309-3291999 / 1-309-3291999)