Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KM7CLZ callsign genealogy
Currently held by Wacker, John F
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 KM7CLZ'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 KM7CLZ.
- Wacker, John FWAgranted 2025-09-24cancelled 2026-01-03