Chronology of call letters WRC

• Date: ...June 30, 1923-February 27, 1984 ( Note: First transmission was apparently on July 19, 1923; station was authorized to transmit before that date, and assigned a frequency as shown effective with the May 15, 1923 frequency allocations. Another source gives start date as June 28, 1923.)
• Frequency:
  • 640 khz (May 15, 1923-June 30, 1928...) ( Note: This was the date of authorization to use 640 khz; actual transmissions were begun July 19, 1923.)
  • 980 khz (...February 27, 1984)
• Location:
  • Washington, District of Columbia (...June 30, 1923-February 27, 1984) (See Note on Date above.)
• Owner of license:
  • Radio Corporation of America (...June 30, 1923-June 30, 1928...)
• Subsequent call letters: WWRC