Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC9BGL callsign genealogy
Currently held by Amdahl, Keith A
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 KC9BGL'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 KC9BGL.
- Amdahl, Keith AWIgranted 2012-02-14cancelled 2015-11-17