Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KS0JSX callsign genealogy
Currently held by Stratmann, Christopher A
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 KS0JSX's current licensee, walking backwards.
- Stratmann, Christopher AKSgranted 2009-02-23cancelled 2009-03-13
Successor callsigns
Callsigns held now by people who previously held KS0JSX.
- Stratmann, Christopher AKSgranted 2017-10-06