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

KD3ZX callsign genealogy

Currently held by FARRELL, MARK S

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 KD3ZX's current licensee, walking backwards.

  1. KZ3DXactive· E
    Erfurth, W AUTgranted 2018-11-14
  2. W7GSAactive
    Galileo STEM Academy Amateur Radio ClubIDgranted 2019-03-01
  3. W7BDRcancelled
    Digital Amateur Radio Club Of The Treasure ValleyIDgranted 2015-10-16cancelled 2019-03-01
  4. KG7WDHcancelled
    Digital Amateur Radio Club Of The Treasure ValleyIDgranted 2015-09-21cancelled 2015-10-16

Successor callsigns

Callsigns held now by people who previously held KD3ZX.

  1. AA3ASexpired· E
    MIYAZAKI, YOSHITAKAMDgranted 1992-06-16cancelled 2004-06-17
← Back to KD3ZX License history →