Chronology of call letters WIAD

First station

• Date: ...August 1, 1922-1929
• Frequency:
  • 833 kHz (...August 1, 1922...)
  • 1180 khz (...June 30, 1923-June 30, 1924...)
  • 1200 khz (...June 30, 1925-June 30, 1926...)
  • 1360 khz (...June 30, 1927...)
  • 1040 khz (...June 30, 1928...)
• Location:
  • Ocean City, New Jersey (...August 1, 1922-October 22, 1923)
  • Philadelphia, Pennsylvania (October 22, 1923-June 30, 1928...)
• Owner of license:
  • Ocean City Yacht Club (Howard R. Miller) (...August 1, 1922-June 30, 1923...)
  • Howard R. Miller (...June 30, 1924-1929)
• Subsequent call letters: WELK

Second station

• Date: December 16, 2009-2016...
• Previous call letters: WTGB-FM
• Frequency:
  • 94.7 MHz (December 16, 2009-2016...)
• Location:
  • Bethesda, Maryland (December 16, 2009-2016...)
• Owner of license:
  • CBS Radio East, Inc. (...2016...)