Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB0QD callsign genealogy
Currently held by Winkelmann, Joseph P
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 AB0QD's current licensee, walking backwards.
- Winkelmann, Joseph PMOgranted 1999-07-29cancelled 2001-02-27
Successor callsigns
Callsigns held now by people who previously held AB0QD.
No current licensee on record previously held this callsign.