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

KK4KC callsign genealogy

Currently held by Cossette, Kalem K

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 KK4KC's current licensee, walking backwards.

  1. KI4FSTcancelled· E
    Cossette, Kalem KNCgranted 2014-03-13cancelled 2015-07-28

Successor callsigns

Callsigns held now by people who previously held KK4KC.

  1. W4KKCactive· E
    Cossette, Kalem KOHgranted 2022-12-28
  2. WO4ECcancelled· E
    WILLIAMS, ESTLE AALgranted 1999-07-27cancelled 1999-10-26

All historical holders

Every license row we've seen with the callsign KK4KC, oldest first.

  • Cossette, Kalem K CA
    2015-07-28 → cancelled 2022-12-28
  • WILLIAMS, ESTLE A
    — → cancelled 1999-07-27
← Back to KK4KC License history →