Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W7TRV callsign genealogy
Currently held by Shamblin, Trevor
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 W7TRV's current licensee, walking backwards.
- Shamblin, TrevorNVgranted 2025-11-21cancelled 2026-08-28
Successor callsigns
Callsigns held now by people who previously held W7TRV.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W7TRV, oldest first.
- VAN DEN BOS, TIMOTHY R OR2010-06-12 → cancelled 2022-06-28
- Shamblin, Trevor NV2026-08-28 active