Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC9IGF callsign genealogy
Currently held by Krotzman, Brian J
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 KC9IGF'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 KC9IGF.
- Krotzman, Brian JWIgranted 2007-03-13cancelled 2013-05-31