Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KP4CRT callsign genealogy
Currently held by RUIZ TIRADO, CARLOS
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 KP4CRT's current licensee, walking backwards.
- RUIZ TIRADO, CARLOSPRgranted 2023-05-23cancelled 2023-06-23
Successor callsigns
Callsigns held now by people who previously held KP4CRT.
No current licensee on record previously held this callsign.