What is the area code for Illinois?

Area code for the US state: Illinois

The area code of Illinois is 217, 224, 309, 312, 331, 618, 630, 708, 773, 779, 815, 847,

Cities of Illinois

  • Champaign
  • Algonquin
  • Bloomington
  • West Chicago
  • Addison
  • East Alton
  • Bellwood
  • Belvidere
    • Click here to find US Area Code List