uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-14

N4ZSX callsign genealogy

Currently held by CLACK, GEORGE G

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 N4ZSX's current licensee, walking backwards.

  1. KC4QAW
    no FCC ULS record on file

Successor callsigns

Callsigns held now by people who previously held N4ZSX.

No current licensee on record previously held this callsign.

← Back to N4ZSX License history →