Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KM7FXD callsign genealogy
Currently held by Zamberlan Jr, John 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 KM7FXD'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 KM7FXD.
- Zamberlan Jr., John JWAgranted 2026-07-21