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Confidence: Medium · Source: FCC ULS · As of 2026-09-12

KF5E callsign genealogy

Currently held by JOHNSTON, MICHAEL C

The FCC publishes a previous_call_sign on every amateur license — a self-link to the licensee's prior callsign. Following those links produces the chain below.

Previous callsigns

Older callsigns held by KF5E's current licensee, walking backwards.

  1. W0MCJcancelled· E
    JOHNSTON, MICHAEL CMOgranted 2011-04-19cancelled 2019-08-03
  2. KC0CEKcancelled· T
    JOHNSTON, MICHAEL CMOgranted 1997-11-03cancelled 2001-06-12

Successor callsigns

Callsigns held now by people who previously held KF5E.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign KF5E, oldest first.

  • CASSADY, THOMAS R AR
    2007-06-12 → cancelled 2019-07-16
  • JOHNSTON, MICHAEL C MO
    2019-08-03 active