Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KZ4QO callsign genealogy
Currently held by DeBruin, Nicolas Z
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 KZ4QO's current licensee, walking backwards.
- DeBruin, Nicolas ZNCgranted 2021-12-06cancelled 2025-02-26
Successor callsigns
Callsigns held now by people who previously held KZ4QO.
- DeBruin, Nicolas ZNCgranted 2025-03-21