Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KM4USZ callsign genealogy
Currently held by SIX METER AMATEUR RADIO CLUB 50
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 KM4USZ'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 KM4USZ.
- NO6MCactiveSIX METER AMATEUR CLUB 50FLgranted 2016-07-06