Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4DXK callsign genealogy
Currently held by PALFALVY, ERNEST
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 W4DXK's current licensee, walking backwards.
- Klein, Michael DCAgranted 2013-03-22cancelled 2020-05-05
Successor callsigns
Callsigns held now by people who previously held W4DXK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4DXK, oldest first.
- PALFALVY, ERNEST FL1999-03-04 → cancelled 2011-03-05
- Klein, Michael D CA2020-05-05 active