Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K6JSA callsign genealogy
Currently held by Anderson, Joseph S
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 K6JSA's current licensee, walking backwards.
- Anderson, Joseph SCAgranted 2020-01-29cancelled 2020-11-10
Successor callsigns
Callsigns held now by people who previously held K6JSA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6JSA, oldest first.
- Sheetz IV, Ellsworth E CA2007-03-22 → cancelled 2019-06-18
- Anderson, Joseph S CA2020-11-10 active