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

KJ4DRG callsign genealogy

Currently held by MAMBAZO, STEPHAN I

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 KJ4DRG's current licensee, walking backwards.

  1. KI4KKVcancelled· T
    MAMBAZO, STEPHAN IALgranted 2008-04-25cancelled 2008-04-25
  2. KF4ZHZcancelled· T
    MAMBAZO, STEPHAN IALgranted 1998-07-14cancelled 2005-06-01

Successor callsigns

Callsigns held now by people who previously held KJ4DRG.

No current licensee on record previously held this callsign.

← Back to KJ4DRG License history →