Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1BTZ callsign genealogy
Currently held by TRAUM, JONATHAN H
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 K1BTZ's current licensee, walking backwards.
- TRAUM, JONATHAN HMAgranted 2014-09-23cancelled 2017-04-01
Successor callsigns
Callsigns held now by people who previously held K1BTZ.
No current licensee on record previously held this callsign.