Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD3TJS callsign genealogy
Currently held by Slowikowski, Thomas J
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 KD3TJS's current licensee, walking backwards.
- Slowikowski, Thomas JPAgranted 2025-05-08cancelled 2025-05-28
Successor callsigns
Callsigns held now by people who previously held KD3TJS.
No current licensee on record previously held this callsign.