Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WX4YZ callsign genealogy
Currently held by CLARK, MALCOLM J
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 WX4YZ's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WX4YZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WX4YZ, oldest first.
- CLARK, MALCOLM J TN1998-12-01 → cancelled 2010-12-02
- Jubik, Edward M SC2024-12-31 active