Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4MSJ callsign genealogy
Currently held by JAMES, MICHAEL S
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 K4MSJ's current licensee, walking backwards.
- JAMES, MICHAEL SVAgranted 2008-10-23cancelled 2009-04-07
Successor callsigns
Callsigns held now by people who previously held K4MSJ.
No current licensee on record previously held this callsign.