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

KC4KC callsign genealogy

Currently held by Crawford 581, Gregory 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 KC4KC's current licensee, walking backwards.

  1. WK4ZXcancelled· E
    CRAWFORD, GREGORY AFLgranted 2011-07-12cancelled 2018-11-16
  2. KC4MUSactive· G
    Musser, Harry JVAgranted 2018-05-22
  3. KN4LNFcancelled· T
    Musser, Harry JVAgranted 2018-04-16cancelled 2018-05-22

Successor callsigns

Callsigns held now by people who previously held KC4KC.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign KC4KC, oldest first.

  • BARRETT, BERNARD J NC
    2004-10-12 → cancelled 2017-01-07
  • Crawford 581, Gregory A FL
    2018-11-16 active
← Back to KC4KC License history →