Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4KNZ callsign genealogy
Currently held by Wisner, John L
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 N4KNZ's current licensee, walking backwards.
- WISNER, JOHN LTNgranted 2014-06-21cancelled 2018-10-27
Successor callsigns
Callsigns held now by people who previously held N4KNZ.
No current licensee on record previously held this callsign.