Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4TDI callsign genealogy
Currently held by PASZKOWSKI, AUSTIN 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 K4TDI's current licensee, walking backwards.
- PASZKOWSKI, AUSTIN JGAgranted 2015-01-16cancelled 2020-03-17
Successor callsigns
Callsigns held now by people who previously held K4TDI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4TDI, oldest first.
- WOLCOTT SR, THOMAS G VA1996-02-12 → cancelled 2008-02-13
- PASZKOWSKI, AUSTIN J GA2020-03-17 active