Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD0GRG callsign genealogy
Currently held by Hill, Gregory A
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 KD0GRG's current licensee, walking backwards.
- Hill, Gregory ACOgranted 2024-02-13cancelled 2025-03-29
Successor callsigns
Callsigns held now by people who previously held KD0GRG.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD0GRG, oldest first.
- Kampfer, Robert D SD2009-02-26 → cancelled 2021-02-27
- Hill, Gregory A CO2025-03-29 active