Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KZ4KDZ callsign genealogy
Currently held by Zack, Karl D
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 KZ4KDZ's current licensee, walking backwards.
- Zack, Karl DGAgranted 2016-01-28cancelled 2021-01-29
Successor callsigns
Callsigns held now by people who previously held KZ4KDZ.
No current licensee on record previously held this callsign.