Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4CZ callsign genealogy
Currently held by BERRIOS RODRIGUEZ, JOSE E
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 KP4CZ's current licensee, walking backwards.
- BERRIOS RODRIGUEZ, JOSE EVAgranted 2016-07-26cancelled 2016-11-05
Successor callsigns
Callsigns held now by people who previously held KP4CZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KP4CZ, oldest first.
- IMHOF, JAMES A CA2004-09-18 → cancelled 2016-09-20
- BERRIOS RODRIGUEZ, JOSE E VA2016-11-05 active