Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4SPJ callsign genealogy
Currently held by Janorschke, Steven P
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 K4SPJ's current licensee, walking backwards.
- Janorschke, Steven PALgranted 2004-02-17cancelled 2004-03-16
Successor callsigns
Callsigns held now by people who previously held K4SPJ.
No current licensee on record previously held this callsign.