Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4JCF callsign genealogy
Currently held by CARMONA FIGUEROA, JULIO
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 KP4JCF's current licensee, walking backwards.
- CARMONA FIGUEROA, JULIOPRgranted 2018-10-23cancelled 2018-11-24
Successor callsigns
Callsigns held now by people who previously held KP4JCF.
- CARMONA FIGUEROA, JULIOPRgranted 2022-03-29