Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9TWV 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 K9TWV's current licensee, walking backwards.
- THORNTON, JOHN Pcancelled 1999-06-02
Successor callsigns
Callsigns held now by people who previously held K9TWV.
- THORNTON, JOHN PILgranted 2016-08-23