Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WD4JKH callsign genealogy
Currently held by HOPPER, DAVID C
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 WD4JKH's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held WD4JKH.
- HOPPER, DAVID CGAgranted 2020-07-24