Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4TBM callsign genealogy
Currently held by MORGAN, THOMAS B
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 W4TBM's current licensee, walking backwards.
- REUTER, DIERKFLgranted 2023-07-18cancelled 2023-08-08
Successor callsigns
Callsigns held now by people who previously held W4TBM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4TBM, oldest first.
- MORGAN, THOMAS B FL2002-08-20 → cancelled 2014-08-21
- REUTER, DIERK FL2023-08-08 active