Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KA1FYX callsign genealogy
Currently held by Dudas, William A
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 KA1FYX's current licensee, walking backwards.
- Dudas, William ACTgranted 2018-07-13cancelled 2022-03-01
Successor callsigns
Callsigns held now by people who previously held KA1FYX.
No current licensee on record previously held this callsign.