Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4FJC callsign genealogy
Currently held by Cardona Garcia, Felix J
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 KP4FJC's current licensee, walking backwards.
- Cardona Garcia, Felix JPRgranted 2018-10-09cancelled 2018-10-27
Successor callsigns
Callsigns held now by people who previously held KP4FJC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KP4FJC, oldest first.
- RUIZ, CARMEN E PR1995-05-03 → cancelled 2007-05-04
- Cardona Garcia, Felix J PR2018-10-27 active