Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD4GPA callsign genealogy
Currently held by DOBLER, RICHARD J
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 KD4GPA's current licensee, walking backwards.
- DOBLER, RICHARD JNCgranted 2024-06-26cancelled 2024-07-16
Successor callsigns
Callsigns held now by people who previously held KD4GPA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD4GPA, oldest first.
- ROSS, VICTORIA C FL2001-11-06 → cancelled 2013-11-07
- DOBLER, RICHARD J NC2024-07-16 active