Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KJ4JSV callsign genealogy
Currently held by Campbell, Robin 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 KJ4JSV's current licensee, walking backwards.
- Vawter, Jason STNgranted 2010-08-17cancelled 2018-05-30
Successor callsigns
Callsigns held now by people who previously held KJ4JSV.
- Campbell, Robin LALgranted 2019-07-16
All historical holders
Every license row we've seen with the callsign KJ4JSV, oldest first.
- Campbell, Robin L AL2009-02-23 → cancelled 2009-03-17
- Vawter, Jason S AL2018-05-30 active