Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB3CZM callsign genealogy
Currently held by DERRICKSON, BRAD 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 KB3CZM'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 KB3CZM.
- DERRICKSON, BRAD LDEgranted 1998-12-17cancelled 2010-12-21