Chronology of call letters KBBT

• Date: May 1, 1991-October 15, 1996
• Previous call letters: KESI
• Frequency:
  • 970 kHz (May 1, 1991-October 15, 1996)
• Location:
  • Portland, Oregon (May 1, 1991-October 15, 1996)
• Subsequent call letters: KUPL