Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KM4MUG callsign genealogy
Currently held by Chatham, Russell A
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 KM4MUG's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KM4MUG.
- Chatham, Russell AAZgranted 2025-08-21