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

KC4KY callsign genealogy

Currently held by HALCOMB, JEFFREY L

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 KC4KY's current licensee, walking backwards.

  1. KK4AFCcancelled· E
    HALCOMB, JEFFREY LFLgranted 2011-01-19cancelled 2014-05-20
  2. KJ4ZWYcancelled· G
    HALCOMB, JEFFREY LNCgranted 2011-01-19cancelled 2011-02-09

Successor callsigns

Callsigns held now by people who previously held KC4KY.

  1. AG4RTcancelled· E
    Twigg Sr, Ronald LKYgranted 2010-04-24cancelled 2011-03-19

All historical holders

Every license row we've seen with the callsign KC4KY, oldest first.

  • GAY, WILLIAM W AL
    1995-01-12 → cancelled 2007-01-13
  • Twigg Sr, Ronald L KY
    2008-03-01 → cancelled 2010-04-24
  • HALCOMB, JEFFREY L FL
    2014-05-20 → cancelled 2026-05-21
← Back to KC4KY License history →