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

K4DDX callsign genealogy

Currently held by Broderick, William G

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 K4DDX's current licensee, walking backwards.

  1. KI4UYFcancelled· G
    Bates, Michael ATNgranted 2015-02-18cancelled 2015-03-10
  2. KI4INVcancelled· G
    Bates, Michael AALgranted 2005-02-03cancelled 2007-04-05

Successor callsigns

Callsigns held now by people who previously held K4DDX.

  1. W4YTTcancelled· E
    Broderick, William GNCgranted 2009-05-02cancelled 2009-06-20
  2. W4YTTcancelled· G
    Broderick, William GNCgranted 2008-12-19cancelled 2009-04-04

All historical holders

Every license row we've seen with the callsign K4DDX, oldest first.

  • BASSLER, RICHARD A VA
    1994-09-30 → cancelled 2006-10-03
  • Broderick, William G NC
    2007-02-21 → cancelled 2008-12-19
  • Broderick, William G NC
    2009-04-04 → cancelled 2009-05-02
  • Bates, Michael A TN
    2025-02-11 active
← Back to K4DDX License history →