Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD4PDW callsign genealogy
Currently held by Speaker, Nicholas 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 KD4PDW's current licensee, walking backwards.
- Speaker, Nicholas JTNgranted 2024-03-15cancelled 2024-04-02
Successor callsigns
Callsigns held now by people who previously held KD4PDW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD4PDW, oldest first.
- MATICS, LARRY F SC1994-12-14 → cancelled 2004-06-11
- Speaker, Nicholas J TN2024-04-02 active