Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KG4HRT callsign genealogy
Currently held by Henderson, James M
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 KG4HRT's current licensee, walking backwards.
- PROCH, PETER DOHgranted 2019-07-03cancelled 2019-09-13
Successor callsigns
Callsigns held now by people who previously held KG4HRT.
- Henderson, James MALgranted 2021-10-30
All historical holders
Every license row we've seen with the callsign KG4HRT, oldest first.
- Henderson, James M AL2000-05-13 → cancelled 2001-02-03
- PROCH, PETER D OH2019-09-13 active