Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WN4GM callsign genealogy
Currently held by Chartier, Jon B
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 WN4GM's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WN4GM.
No current licensee on record previously held this callsign.