Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA9DON callsign genealogy
Currently held by Rafalowski Jr, Donald F
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 KA9DON's current licensee, walking backwards.
- Rafalowski Jr, Donald FMOgranted 2011-02-15cancelled 2016-08-26
Successor callsigns
Callsigns held now by people who previously held KA9DON.
- MARKOWSKI JR, SIGMOND BILgranted 2023-02-22