Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KB9ZRU callsign genealogy
Currently held by Mula, 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 KB9ZRU's current licensee, walking backwards.
- Mula, Brian JINgranted 2001-04-05cancelled 2001-05-21
Successor callsigns
Callsigns held now by people who previously held KB9ZRU.
No current licensee on record previously held this callsign.