Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB9WD callsign genealogy
Currently held by Matzke, Nathaniel O
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 AB9WD's current licensee, walking backwards.
- Matzke, Nathaniel OWIgranted 2010-02-09cancelled 2010-04-05
Successor callsigns
Callsigns held now by people who previously held AB9WD.
- Matzke, Nathaniel OWIgranted 2019-12-20