Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9WSA callsign genealogy
Currently held by Aschenbrenner, Walter Stephen
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 K9WSA's current licensee, walking backwards.
- Aschenbrenner, Walter StephenCAgranted 2014-02-04cancelled 2014-02-25
Successor callsigns
Callsigns held now by people who previously held K9WSA.
No current licensee on record previously held this callsign.