Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD6HB callsign genealogy
Currently held by DUFFY, FRED W
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 AD6HB's current licensee, walking backwards.
- DUFFY, FRED Wcancelled 1998-10-19
Successor callsigns
Callsigns held now by people who previously held AD6HB.
No current licensee on record previously held this callsign.