uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-12

AG4IS callsign genealogy

Currently held by Sturrock, John 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 AG4IS's current licensee, walking backwards.

  1. KG4LQUcancelled· E
    Sturrock, John DFLgranted 2000-11-10cancelled 2001-05-10
  2. KG4KJKcancelled· G
    Sturrock, John DFLgranted 2000-11-10cancelled 2001-02-09

Successor callsigns

Callsigns held now by people who previously held AG4IS.

  1. K4CJactive· E
    Sturrock, John DFLgranted 2021-08-16
← Back to AG4IS License history →