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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

K4ZW callsign genealogy

Currently held by CLAERBOUT, KENNETH J

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 K4ZW's current licensee, walking backwards.

  1. KE9Aactive· E
    Fairbairn, Robert JILgranted 2021-03-09
  2. KF9OAcancelled· E
    Fairbairn, Robert JILgranted 1993-03-16cancelled 2001-03-30
  3. N9HFWactive· E
    Wischnat, Horst FFLgranted 2024-12-06
  4. KB3JMVcancelled· E
    Wischnat, Horst FPAgranted 2003-04-17cancelled 2004-11-26

Successor callsigns

Callsigns held now by people who previously held K4ZW.

No current licensee on record previously held this callsign.

← Back to K4ZW License history →