Confidence: Medium · Source: FCC ULS · As of 2026-09-14
NA4AZ callsign genealogy
Currently held by Hamme, Roy E
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 NA4AZ's current licensee, walking backwards.
- Hamme, Roy ENCgranted 2025-08-23cancelled 2026-03-19
Successor callsigns
Callsigns held now by people who previously held NA4AZ.
No current licensee on record previously held this callsign.