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

K4FU callsign genealogy

Currently held by SAMPLE, STEVEN 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 K4FU's current licensee, walking backwards.

  1. N4OKactive· E
    POULNOT, ROBERT JGAgranted 2024-10-12
  2. N4GOKcancelled· E
    POULNOT, ROBERT JGAgranted 2009-12-22cancelled 2014-12-23
  3. WI4Eactive· E
    GARCIA BARBON, GUILLERMOFLgranted 2022-04-07
  4. KB4PXYcancelled· E
    GARCIA BARBON, GUILLERMOFLgranted 2003-12-30cancelled 2012-01-10

Successor callsigns

Callsigns held now by people who previously held K4FU.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign K4FU, oldest first.

  • ZIMMERMAN, HENRY F KY
    2002-10-29 → cancelled 2010-11-15
  • SAMPLE, STEVEN L FL
    2022-09-07 active
← Back to K4FU License history →