Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4UNZ callsign genealogy
Currently held by SMALLWOOD, DONALD L
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 K4UNZ's current licensee, walking backwards.
- Kunzog, Brian LSCgranted 2023-05-23cancelled 2023-06-10
Successor callsigns
Callsigns held now by people who previously held K4UNZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4UNZ, oldest first.
- SMALLWOOD, DONALD L VA2007-06-29 → cancelled 2019-06-11
- Kunzog, Brian L SC2023-06-10 active