Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9ZM callsign genealogy
Currently held by ALLES, DUANE 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 W9ZM's current licensee, walking backwards.
- ALLES, DUANE Jcancelled 1999-02-03
Successor callsigns
Callsigns held now by people who previously held W9ZM.
No current licensee on record previously held this callsign.