Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WB9WTN callsign genealogy
Currently held by RADVILLAS, JOHN C
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 WB9WTN'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 WB9WTN.
- Radvillas, John CALgranted 2013-01-24cancelled 2025-01-25