Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD0JJJ callsign genealogy
Currently held by Schierl, Hubert
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 KD0JJJ's current licensee, walking backwards.
- Schierl, HubertMOgranted 2009-03-11cancelled 2009-11-10
Successor callsigns
Callsigns held now by people who previously held KD0JJJ.
- Schierl, HubertMOgranted 2019-03-15