Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WT9V callsign genealogy
Currently held by Masterson, Michael J
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 WT9V's current licensee, walking backwards.
- Masterson, Michael JTXgranted 2019-04-02cancelled 2019-05-17
Successor callsigns
Callsigns held now by people who previously held WT9V.
- GOWER, DAVID GMTgranted 2017-04-14
All historical holders
Every license row we've seen with the callsign WT9V, oldest first.
- GOWER, DAVID G MT2011-05-10 → cancelled 2017-04-14
- Masterson, Michael J TX2019-05-17 active