Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4JCD callsign genealogy
Currently held by Diaz, Juan 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 KP4JCD's current licensee, walking backwards.
- Diaz Sr., Juan CPRgranted 2022-12-10cancelled 2022-12-30
Successor callsigns
Callsigns held now by people who previously held KP4JCD.
No current licensee on record previously held this callsign.