Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KE0OSW callsign genealogy
Currently held by OSBORN III, WILLIAM
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 KE0OSW's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KE0OSW.
- OSBORN III, WILLIAMKSgranted 2017-11-03cancelled 2021-06-02