Chronology of call letters WIL

First station

• Date: March 14, 1922-September 13, 1924
• Frequency:
  • 833 khz (March 14, 1922-September 13, 1924)
• Location:
  • Washington, District of Columbia (March 14, 1922-September 13, 1924)
• Owner of license:
  • Continental Electrical Supply Co. (March 14, 1922-September 13, 1924)

Second station

• Date: January 1925-January 18, 1991
• Previous call letters: WEB
• Frequency:
  • 1100 khz (January 1925-June 30, 1926...)
  • 1160 khz (...June 30, 1927-June 30, 1928...)
  • 1200 kHz (...March 29, 1941)
  • 1230 kHz (March 29, 1941...)
• Location:
  • [[Wikipedia:St. Louis, Missouri|Saint Louis, Missouri}} (January 1925-March 29, 1941...)
• Owner of license:
  • St. Louis Star and Benson Radio Co. (...March 1925-June 30, 1926...)
  • Benson Radio Broadcasting Co. (...June 30, 1928...)
• Subsequent call letters: WRTH

Third station

(Actually same as second, after two changes of call sign)

• Date: June 29, 2005-March 5, 2008
• Previous call letters: WRTH
• Frequency:
  • 1430 khz (June 29, 2005-March 5, 2008)
• Location:
  • St. Louis, Missouri (June 29, 2005-March 5, 2008)
• Subsequent call letters: KZQZ