Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WB4JSI callsign genealogy
Currently held by HURST, STANLEY L
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 WB4JSI's current licensee, walking backwards.
- Sloop, David GNCgranted 2011-02-23cancelled 2015-03-17
Successor callsigns
Callsigns held now by people who previously held WB4JSI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WB4JSI, oldest first.
- HURST, STANLEY L SC1998-04-22 → cancelled 2010-04-23
- Sloop, David G NC2015-03-17 active