Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD9FSH callsign genealogy
Currently held by TWIN RIVERS AMATEUR RADIO CLUB
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 KD9FSH's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KD9FSH.
- W9TRAactiveTWIN RIVERS AMATEUR RADIO CLUBILgranted 2026-03-26