Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N9DUG callsign genealogy
Currently held by HERROLD, DOUGLAS H
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 N9DUG's current licensee, walking backwards.
- HERROLD, DOUGLAS Hcancelled 1999-06-02
Successor callsigns
Callsigns held now by people who previously held N9DUG.
No current licensee on record previously held this callsign.