Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4MJV callsign genealogy
Currently held by VAILLANCOURT, MICHAEL J
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 K4MJV's current licensee, walking backwards.
- VAILLANCOURT, MICHAEL JVAgranted 2014-12-03cancelled 2019-06-18
Successor callsigns
Callsigns held now by people who previously held K4MJV.
No current licensee on record previously held this callsign.