Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF4WTX callsign genealogy
Currently held by MARTI, VALERIANO
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 KF4WTX's current licensee, walking backwards.
- MARTI, VALERIANOcancelled 1998-04-03
Successor callsigns
Callsigns held now by people who previously held KF4WTX.
- MARTI, VALERIANOFLgranted 2020-04-03