Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4NZH callsign genealogy
Currently held by WRUCK JR, JAY H
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 K4NZH's current licensee, walking backwards.
- Wruck Jr, Jay HGAgranted 2001-06-13cancelled 2006-05-06
Successor callsigns
Callsigns held now by people who previously held K4NZH.
- WRUCK JR, JAY HTXgranted 2021-08-24