Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KZ0BJA callsign genealogy
Currently held by Alwin, 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 KZ0BJA's current licensee, walking backwards.
- Alwin, Brian JMNgranted 2015-08-20cancelled 2015-09-15
Successor callsigns
Callsigns held now by people who previously held KZ0BJA.
- Alwin, Brian JMNgranted 2020-06-26