Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB4UPM callsign genealogy
Currently held by Buchan II, Wayne 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 WB4UPM's current licensee, walking backwards.
- Buchan II, Wayne WVAgranted 2025-08-14cancelled 2025-09-27
Successor callsigns
Callsigns held now by people who previously held WB4UPM.
No current licensee on record previously held this callsign.