Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA9HDD callsign genealogy
Currently held by STEINER, FREDERICK 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 WA9HDD's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held WA9HDD.
- STEINER, FREDERICK WMIgranted 2026-07-02