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

KJ4JX callsign genealogy

Currently held by Metz, David R

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 KJ4JX's current licensee, walking backwards.

  1. KI4WMDcancelled· E
    Metz, David RVAgranted 2007-03-27cancelled 2007-07-10
  2. KI4UDBcancelled· T
    Metz, David RVAgranted 2007-03-08cancelled 2007-03-27

Successor callsigns

Callsigns held now by people who previously held KJ4JX.

  1. K4OKAexpired· E
    ABERNETHY, JOHN ANCgranted 1996-08-01cancelled 2008-08-02
← Back to KJ4JX License history →