Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KX4RTO callsign genealogy
Currently held by Valenzuela, Anthony 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 KX4RTO's current licensee, walking backwards.
- Valenzuela, Anthony CNCgranted 2019-06-13cancelled 2019-07-09
Successor callsigns
Callsigns held now by people who previously held KX4RTO.
No current licensee on record previously held this callsign.