Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KM9SPL callsign genealogy
Currently held by Malinowski, Mateus 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 KM9SPL's current licensee, walking backwards.
- Malinowski, Mateus AILgranted 2021-04-19cancelled 2021-05-29
Successor callsigns
Callsigns held now by people who previously held KM9SPL.
No current licensee on record previously held this callsign.