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

KC9DX callsign genealogy

Currently held by RILEY, ROBERT 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 KC9DX's current licensee, walking backwards.

  1. W5ESEactive· E
    Mc Mullen, Scott ATXgranted 2024-08-14
  2. NJ0Eactive· E
    CARNEY, JOSEPH AKSgranted 2017-12-07
  3. KC0TAScancelled· E
    Carney, Joseph AKSgranted 2004-09-07cancelled 2008-02-29

Successor callsigns

Callsigns held now by people who previously held KC9DX.

  1. W5ESEcancelled· A
    RILEY, ROBERT WINgranted 1999-10-28cancelled 2000-07-01

All historical holders

Every license row we've seen with the callsign KC9DX, oldest first.

  • RILEY, ROBERT W IN
    1997-11-25 → cancelled 1999-10-28
  • RILEY, ROBERT W IN
    2020-04-15 active
← Back to KC9DX License history →