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

K6DU callsign genealogy

Currently held by DUBSON, F JERRY

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 K6DU's current licensee, walking backwards.

  1. W6MDHactive· G
    Heyman, Martin DFLgranted 2026-04-14
  2. KG6WEQcancelled· G
    Heyman, Martin DCAgranted 2004-08-23cancelled 2005-07-12

Successor callsigns

Callsigns held now by people who previously held K6DU.

No current licensee on record previously held this callsign.