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

KN8K callsign genealogy

Currently held by Girard, David F

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 KN8K's current licensee, walking backwards.

  1. KW4GKcancelled· E
    COOPER, MARTIN AFLgranted 2013-05-20cancelled 2015-03-14
  2. KE4AOJcancelled· E
    COOPER, MARTIN AFLgranted 2013-05-20cancelled 2015-02-23

Successor callsigns

Callsigns held now by people who previously held KN8K.

  1. WW8JDcancelled· E
    Girard, David FMIgranted 2013-02-23cancelled 2015-05-27

All historical holders

Every license row we've seen with the callsign KN8K, oldest first.

  • HOLT, BOBBY J OH
    1996-01-19 → cancelled 2008-01-23
  • Girard, David F MI
    2008-04-08 → cancelled 2013-02-23
  • COOPER, MARTIN A FL
    2025-02-04 active