Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KM4JJB callsign genealogy
Currently held by BANGASSER, JOHN 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 KM4JJB's current licensee, walking backwards.
- BANGASSER, JOHN JVAgranted 2014-11-10cancelled 2014-12-02
Successor callsigns
Callsigns held now by people who previously held KM4JJB.
No current licensee on record previously held this callsign.