US Area Code

779

Northern Illinois · Illinois

Area code 779 serves Rockford, DeKalb, Dixon and surrounding areas in Illinois. Look up any 779 number below to check for spam, see caller ID, carrier, and line type.

Area Code Details

State / Territory
Illinois
Region
Northern Illinois
Major Cities
Rockford, DeKalb, Dixon
Timezone
Central Time
Country
United States
Format
+1 (779) XXX-XXXX

Other Illinois area codes

217 Central Illinois224 Northern Illinois309 Central Illinois312 Chicago331 Chicago Suburbs447 East-Central Illinois464 South Cook County618 Southern Illinois630 DuPage County708 South/Southwest Suburbs730 Central Illinois773 Chicago815 Northern Illinois847 North Cook / Lake County872 Chicago