Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KZ4DQ callsign genealogy
Currently held by OLIVER JR, KEITH P
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 KZ4DQ's current licensee, walking backwards.
- Oliver Jr, Keith PVAgranted 2016-03-08cancelled 2024-01-29
Successor callsigns
Callsigns held now by people who previously held KZ4DQ.
No current licensee on record previously held this callsign.