Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC4MMZ callsign genealogy
Currently held by CARLSON, JUSTIN Q
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 KC4MMZ'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 KC4MMZ.
- CARLSON, JUSTIN QWYgranted 2012-04-10cancelled 2021-05-18