Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KG4JSU callsign genealogy
Currently held by Bigel, Jordan
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 KG4JSU's current licensee, walking backwards.
- Bigel, JordanFLgranted 2014-11-13cancelled 2014-12-30
Successor callsigns
Callsigns held now by people who previously held KG4JSU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KG4JSU, oldest first.
- Bigel, Jordan FL2000-09-27 → cancelled 2012-09-28
- Bigel, Jordan FL2014-12-30 active