Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WD4RNR callsign genealogy
Currently held by THOMPSON, BRANDON W
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 WD4RNR's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WD4RNR.
- THOMPSON, BRANDON WTXgranted 2023-05-31
All historical holders
Every license row we've seen with the callsign WD4RNR, oldest first.
- MC CLAIN, JOHN D VA1995-03-02 → cancelled 2007-03-03
- THOMPSON, BRANDON W TX2021-05-21 → cancelled 2023-05-31