Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KZ4XD callsign genealogy
Currently held by JENSEN, DAVID C
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 KZ4XD's current licensee, walking backwards.
- JENSEN, DAVID CFLgranted 2025-05-02cancelled 2025-09-26
Successor callsigns
Callsigns held now by people who previously held KZ4XD.
No current licensee on record previously held this callsign.