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

N4FZZ callsign genealogy

Currently held by HEIRONIMUS JR, LINWOOD W

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 N4FZZ's current licensee, walking backwards.

  1. KO4LQFcancelled· G
    HEIRONIMUS JR, LINWOOD WTNgranted 2020-01-24cancelled 2021-07-27
  2. KE4UFJcancelled· G
    HEIRONIMUS JR, LINWOOD WTNgranted 2020-01-24cancelled 2021-01-29
  3. W0GODactive· T
    BRIGHTON, PETERSCgranted 2022-12-31
  4. KI5ZBMcancelled· T
    BRIGHTON, PETERARgranted 2022-12-13cancelled 2022-12-31

Successor callsigns

Callsigns held now by people who previously held N4FZZ.

No current licensee on record previously held this callsign.

← Back to N4FZZ License history →