Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9UNZ callsign genealogy
Currently held by Fillian, Jeffrey A
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 K9UNZ's current licensee, walking backwards.
- Fillian, Jeffrey AWIgranted 2021-05-18cancelled 2025-03-28
Successor callsigns
Callsigns held now by people who previously held K9UNZ.
No current licensee on record previously held this callsign.