Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KX6Z callsign genealogy
Currently held by Alpert, David S
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 KX6Z's current licensee, walking backwards.
- Alpert, David SCAgranted 2001-06-15cancelled 2002-01-25
Successor callsigns
Callsigns held now by people who previously held KX6Z.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KX6Z, oldest first.
- TRESSL, CASPER J CA1988-03-22 → cancelled 2000-03-23
- Alpert, David S AZ2021-11-08 active