Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4TBF callsign genealogy
Currently held by Ferguson, Trey 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 W4TBF's current licensee, walking backwards.
- Ferguson, Trey BTNgranted 2022-01-31cancelled 2023-03-13
Successor callsigns
Callsigns held now by people who previously held W4TBF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4TBF, oldest first.
- MONTGOMERY JR, WILLIAM F FL1998-04-03 → cancelled 2010-04-06
- Ferguson, Trey B TN2023-03-13 active