Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KN4H callsign genealogy
Currently held by Kruszewski SR, Buck R
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 KN4H's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KN4H.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KN4H, oldest first.
- Thrash Jr, Kenneth M GA2014-03-10 → cancelled 2026-06-02
- Kruszewski SR, Buck R AL2026-06-19 active