Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD9RMM callsign genealogy
Currently held by Barz, Jason W
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 KD9RMM's current licensee, walking backwards.
- Barz, Jason WINgranted 2020-02-06cancelled 2020-02-25
Successor callsigns
Callsigns held now by people who previously held KD9RMM.
No current licensee on record previously held this callsign.