Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC9TOK callsign genealogy
Currently held by Schoenefeld, Brian M
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 KC9TOK'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 KC9TOK.
- Schoenefeld, Brian MOKgranted 2012-08-10cancelled 2017-08-08