Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WS5I callsign genealogy
Currently held by Riddle, Jon
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 WS5I's current licensee, walking backwards.
- Riddle, JonTXgranted 2022-07-12cancelled 2024-05-24
Successor callsigns
Callsigns held now by people who previously held WS5I.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WS5I, oldest first.
- POOLE, ROBERT T TX2012-02-23 → cancelled 2024-05-07
- Riddle, Jon TX2024-05-24 active