Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4FMD callsign genealogy
Currently held by DUNSTAN III, FREDERICK M
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 K4FMD's current licensee, walking backwards.
- DUNSTAN III, FREDERICK Mcancelled 1999-05-05
Successor callsigns
Callsigns held now by people who previously held K4FMD.
No current licensee on record previously held this callsign.