Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC9ZDN callsign genealogy
Currently held by Thornell, Garland L
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 KC9ZDN'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 KC9ZDN.
- Thornell, Garland LINgranted 2013-07-16cancelled 2025-07-17