Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KG4SHG callsign genealogy
Currently held by GRISHAM, HENRY 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 KG4SHG's current licensee, walking backwards.
- GRISHAM, HENRY DKYgranted 2025-12-03cancelled 2026-08-28
Successor callsigns
Callsigns held now by people who previously held KG4SHG.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KG4SHG, oldest first.
- GREBE, CODY D MI2012-01-18 → cancelled 2024-03-21
- GRISHAM, HENRY D KY2026-08-28 active