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

KT4ON callsign genealogy

Currently held by Salmon, Richard A

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 KT4ON's current licensee, walking backwards.

  1. K4TONactive· E
    Salmon, Richard AKYgranted 2018-04-13

Successor callsigns

Callsigns held now by people who previously held KT4ON.

  1. K4SDOactive· E
    O DONNELL, STEVEN DKYgranted 2024-10-16
  2. K4TONactive· E
    Salmon, Richard AKYgranted 2018-04-13

All historical holders

Every license row we've seen with the callsign KT4ON, oldest first.

  • O DONNELL, STEVEN D KY
    1998-10-27 → cancelled 2004-11-10
  • Salmon, Richard A KY
    2016-12-02 → cancelled 2018-04-13
← Back to KT4ON License history →