Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K8MJM callsign genealogy
Currently held by Muster, 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 K8MJM's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K8MJM.
No current licensee on record previously held this callsign.