Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KZ4ZZZ callsign genealogy
Currently held by Walker, Allen 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 KZ4ZZZ's current licensee, walking backwards.
- Walker, Allen DFLgranted 2010-02-23cancelled 2010-07-03
Successor callsigns
Callsigns held now by people who previously held KZ4ZZZ.
No current licensee on record previously held this callsign.