United States

Illinois Area Codes

Illinois has 13 area codes. Choose one to see the cities it covers, its time zone, common scam call patterns and to trace a number with that prefix.

• 217

  Springfield
  Central
• 224

  Waukegan
  Central
• 309

  Peoria
  Central
• 312

  Downtown Chicago, The Loop, Near North Side
  Central
• 331

  Aurora
  Central
• 618

  Belleville
  Central
• 630

  Aurora
  Central
• 708

  Cicero, Oak Park, Oak Lawn
  Central
• 773

  Chicago
  Central
• 779

  Rockford
  Central
• 815

  Rockford, Joliet, DeKalb
  Central
• 847

  Waukegan
  Central
• 872

  Chicago
  Central