Confidence: Medium · Source: FCC ULS · As of 2026-09-11
WM3Z callsign genealogy
Currently held by STEWART, WALTER W
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 WM3Z's current licensee, walking backwards.
- Florido, Vilar EMDgranted 2009-10-28cancelled 2013-06-11
Successor callsigns
Callsigns held now by people who previously held WM3Z.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WM3Z, oldest first.
- STEWART, WALTER W TX2001-03-24 → cancelled 2013-05-01
- Florido, Vilar E MD2023-04-04 active