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

KO3U callsign genealogy

Currently held by Brown, David

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 KO3U's current licensee, walking backwards.

  1. KC3QZHcancelled· E
    Brown, DavidPAgranted 2021-01-19cancelled 2021-08-17

Successor callsigns

Callsigns held now by people who previously held KO3U.

  1. N4XIactive· E
    SHIFFLETT, JEFFERY AVAgranted 2024-07-11
  2. K6QTcancelled· E
    EDWARDS, SHON RUTgranted 2020-01-15cancelled 2023-03-31
  3. NX5Nactive· E
    Browning, DavidARgranted 2019-07-06

All historical holders

Every license row we've seen with the callsign KO3U, oldest first.

  • EDWARDS, SHON R UT
    2009-11-17 → cancelled 2010-04-13
  • SHIFFLETT, JEFFERY A VA
    2013-05-07 → cancelled 2014-08-12
  • Browning, David AR
    2016-09-02 → cancelled 2019-07-06
  • Brown, David PA
    2021-08-17 active
← Back to KO3U License history →