Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB4TRJ callsign genealogy
Currently held by HUTCHISON, MARBURY M
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 KB4TRJ's current licensee, walking backwards.
- Poehlmann, RogerCAgranted 2026-03-18cancelled 2026-05-02
Successor callsigns
Callsigns held now by people who previously held KB4TRJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB4TRJ, oldest first.
- HUTCHISON, MARBURY M VA2005-12-21 → cancelled 2018-03-21
- Poehlmann, Roger CA2026-05-02 active