Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9DFR callsign genealogy
Currently held by Frisch, Dominic 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 K9DFR's current licensee, walking backwards.
- Frisch, Dominic JILgranted 2020-12-29cancelled 2021-01-19
Successor callsigns
Callsigns held now by people who previously held K9DFR.
No current licensee on record previously held this callsign.