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

KD4NOX callsign genealogy

Currently held by Poston, William 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 KD4NOX's current licensee, walking backwards.

  1. KO4SRUcancelled· E
    POSTON, BILLSCgranted 2021-07-12cancelled 2021-10-01
  2. KO4RUIcancelled· G
    Poston, BillSCgranted 2021-07-12cancelled 2021-08-19

Successor callsigns

Callsigns held now by people who previously held KD4NOX.

  1. KD4BPactive· E
    POSTON, William LSCgranted 2022-09-30

All historical holders

Every license row we've seen with the callsign KD4NOX, oldest first.

  • HEDARIA, GREGORY P FL
    1992-04-28 → cancelled 2004-04-29
  • Poston, William L SC
    2021-10-01 → cancelled 2022-09-30
← Back to KD4NOX License history →