Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WT5X callsign genealogy
Currently held by SMITH, MASON E
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 WT5X's current licensee, walking backwards.
- Harden Jr, Ronald LTXgranted 2014-04-09cancelled 2018-10-30
Successor callsigns
Callsigns held now by people who previously held WT5X.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WT5X, oldest first.
- SMITH, MASON E OK2006-08-03 → cancelled 2018-10-11
- Harden Jr, Ronald L TX2018-10-30 active