Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KK4HG callsign genealogy
Currently held by Geiger II, Hubert D
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 KK4HG's current licensee, walking backwards.
- Geiger II, Hubert DSCgranted 2021-07-28cancelled 2023-11-18
Successor callsigns
Callsigns held now by people who previously held KK4HG.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KK4HG, oldest first.
- GARDNER III, HENRY A MD2007-05-15 → cancelled 2019-05-16
- Geiger II, Hubert D SC2023-11-18 active