Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KG6CGH callsign genealogy
Currently held by Hartzell, Mary 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 KG6CGH's current licensee, walking backwards.
- Henthorne, Clifford GCAgranted 2022-01-11cancelled 2023-08-01
Successor callsigns
Callsigns held now by people who previously held KG6CGH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KG6CGH, oldest first.
- Hartzell, Mary L CA2010-12-23 → cancelled 2022-12-24
- Henthorne, Clifford G CA2023-08-01 active