Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WD4FDJ callsign genealogy
Currently held by HETZEL JR, ALAN D
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 WD4FDJ's current licensee, walking backwards.
- HETZEL JR, ALAN DGAgranted 2010-07-14cancelled 2010-08-06
Successor callsigns
Callsigns held now by people who previously held WD4FDJ.
- HETZEL JR, ALAN DGAgranted 2020-07-02