Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KZ6Z callsign genealogy
Currently held by NICCUM, THOMAS M
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 KZ6Z's current licensee, walking backwards.
- NICCUM, THOMAS MCAgranted 2021-05-04cancelled 2022-09-16
Successor callsigns
Callsigns held now by people who previously held KZ6Z.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KZ6Z, oldest first.
- MUNRO, STEPHEN A WA2010-06-09 → cancelled 2022-08-23
- NICCUM, THOMAS M CA2022-09-16 active