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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

K4IZY callsign genealogy

Currently held by KEEL, THOMAS F

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 K4IZY's current licensee, walking backwards.

  1. N2CPactive· E
    Roseborough, Boykin MSCgranted 2022-05-24
  2. K4AJJactive· E
    Wells Jr, John JSCgranted 2021-10-30
  3. KO4OEYcancelled· E
    Wells Jr, John JSCgranted 2021-03-15cancelled 2021-10-30

Successor callsigns

Callsigns held now by people who previously held K4IZY.

  1. W4SZEactive· E
    KEEL, THOMAS FPAgranted 2020-02-21
← Back to K4IZY License history →