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Confidence: Medium · Source: FCC ULS · As of 2026-09-12

KX4SW callsign genealogy

Currently held by KAEFF JR, CHARLES N

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 KX4SW's current licensee, walking backwards.

  1. K3UQactive· E
    Ziadie, Kelly GMDgranted 2021-07-20
  2. KC3NIEcancelled· E
    Ziadie, Kelly GMDgranted 2019-04-22cancelled 2021-07-20

Successor callsigns

Callsigns held now by people who previously held KX4SW.

  1. AD8ERcancelled· E
    KAEFF JR, CHARLES NKYgranted 2018-06-05cancelled 2019-11-19
← Back to KX4SW License history →