Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WT4BT callsign genealogy
Currently held by Thomas, Barclay 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 WT4BT's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WT4BT.
No current licensee on record previously held this callsign.