Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4CE callsign genealogy
Currently held by GELPI, ROBERTO Z
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 KP4CE's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KP4CE.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KP4CE, oldest first.
- GELPI, ROBERTO Z PR1996-03-21 → cancelled 2008-03-22
- PEREZ, CARLOS R PR2011-06-24 → cancelled 2023-07-12
- VELEZ JIMENEZ, RICARDO PR2023-09-19 active