Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W0BJT callsign genealogy
Currently held by TREMBLY, BENJAMIN 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 W0BJT's current licensee, walking backwards.
- TREMBLY, BENJAMIN JMOgranted 2020-01-21cancelled 2020-02-11
Successor callsigns
Callsigns held now by people who previously held W0BJT.
- TREMBLY, BENJAMIN JMOgranted 2022-04-26
All historical holders
Every license row we've seen with the callsign W0BJT, oldest first.
- LANDIS, JACK K OK2005-01-12 → cancelled 2017-03-25
- TREMBLY, BENJAMIN J MO2020-02-11 → cancelled 2022-04-26