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

AB1NZ callsign genealogy

Currently held by Johnston, Albert S

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 AB1NZ's current licensee, walking backwards.

  1. KB1USHcancelled· E
    Johnston, Albert SMAgranted 2010-09-02cancelled 2010-11-17

Successor callsigns

Callsigns held now by people who previously held AB1NZ.

No current licensee on record previously held this callsign.