Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4JSA callsign genealogy
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 K4JSA's current licensee, walking backwards.
- ANDREWS, JAMES SNCgranted 2002-09-04cancelled 2008-05-31
Successor callsigns
Callsigns held now by people who previously held K4JSA.
- FEIGEL, ROBERT EORgranted 2018-10-23cancelled 2018-11-14
All historical holders
Every license row we've seen with the callsign K4JSA, oldest first.
- ANDREWS, JAMES S NC2018-03-16 active
- —— → cancelled 1998-11-13