Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6MSJ callsign genealogy
Currently held by Johnson, Mike 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 K6MSJ's current licensee, walking backwards.
- Johnson, Mike SCAgranted 2016-01-27cancelled 2016-02-17
Successor callsigns
Callsigns held now by people who previously held K6MSJ.
No current licensee on record previously held this callsign.