Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB9TWV callsign genealogy
Currently held by THORNTON, JOHN P
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 KB9TWV'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 KB9TWV.
- THORNTON, JOHN PILgranted 1999-06-02cancelled 2006-10-06