Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WY4Z callsign genealogy
Currently held by Stewart Jr, Walter 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 WY4Z's current licensee, walking backwards.
- Stewart Jr, Walter STNgranted 1996-04-11cancelled 2004-10-19
Successor callsigns
Callsigns held now by people who previously held WY4Z.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WY4Z, oldest first.
- JOHNSON, HARRY W VA1994-04-05 → cancelled 2001-02-15
- Stewart Jr, Walter S TN2024-07-23 active