Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WT4J callsign genealogy
Currently held by DYKES, THOMAS R
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 WT4J's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WT4J.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WT4J, oldest first.
- DYKES, THOMAS R GA2008-06-06 → cancelled 2017-10-20
- BLACKBURN, HOBSON D AL2019-11-08 active