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

K4EMX callsign genealogy

Currently held by Cox, Steven A

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 K4EMX's current licensee, walking backwards.

  1. KK4PGAactive· T
    Arnold, Patrick GFLgranted 2018-05-01
  2. KN4LLAcancelled· T
    Arnold, Patrick GFLgranted 2018-04-12cancelled 2018-05-01

Successor callsigns

Callsigns held now by people who previously held K4EMX.

  1. W4AMWactive· E
    Cox, Robert SKYgranted 2023-05-23

All historical holders

Every license row we've seen with the callsign K4EMX, oldest first.

  • COX, SCHLEY KY
    1996-01-23 → cancelled 2002-04-04
  • Cox, Steven A TN
    2014-03-28 → cancelled 2026-03-31
← Back to K4EMX License history →