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

K4KOX callsign genealogy

Currently held by GRAY JR, WILLIAM C

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 K4KOX's current licensee, walking backwards.

  1. KE4GKI
    no FCC ULS record on file

Successor callsigns

Callsigns held now by people who previously held K4KOX.

No current licensee on record previously held this callsign.

← Back to K4KOX License history →