Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KM4WSJ callsign genealogy
Currently held by Vachon, J C Pierre
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 KM4WSJ's current licensee, walking backwards.
- Vachon, J C PierreFLgranted 2013-08-21cancelled 2016-09-19
Successor callsigns
Callsigns held now by people who previously held KM4WSJ.
No current licensee on record previously held this callsign.