Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4HAM callsign genealogy
Currently held by Henderson Jr, Krieger W
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 N4HAM's current licensee, walking backwards.
- BUCHANAN, F TROYUTgranted 2019-04-30cancelled 2019-06-18
Successor callsigns
Callsigns held now by people who previously held N4HAM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4HAM, oldest first.
- Henderson Jr, Krieger W VA2007-03-05 → cancelled 2019-05-29
- BUCHANAN, F TROY UT2019-06-18 active