Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD4TSX callsign genealogy
Currently held by SPRINGER, ROY 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 KD4TSX's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KD4TSX.
- SPRINGER, ROY JTNgranted 2002-07-17cancelled 2005-08-12