Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC9QDH callsign genealogy
Currently held by Local Emergency Field Radio Operating Group
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 KC9QDH'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 KC9QDH.
- W9FRGactiveLocal Emergency Field Radio Operating GroupWIgranted 2019-06-18