Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4QZ callsign genealogy
Currently held by VAZQUEZ DIAZ, MARTIN
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 KP4QZ's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KP4QZ.
No current licensee on record previously held this callsign.