Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA4OSE callsign genealogy
Currently held by Baker, Willis B
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 WA4OSE's current licensee, walking backwards.
- Baker, Willis BNCgranted 2025-02-20cancelled 2025-05-17
Successor callsigns
Callsigns held now by people who previously held WA4OSE.
No current licensee on record previously held this callsign.