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

WB4TDM callsign genealogy

Currently held by MOORE JR, TROY D

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 WB4TDM's current licensee, walking backwards.

  1. AD4EEexpired· E
    Thiel, Emily MFLgranted 2013-03-12cancelled 2025-03-13
  2. AG4JYcancelled· E
    Thiel, Emily MFLgranted 2007-12-18cancelled 2013-03-12
  3. KF4VWMcancelled· E
    Thiel, Emily MFLgranted 1998-10-15cancelled 2001-07-26

Successor callsigns

Callsigns held now by people who previously held WB4TDM.

  1. N4CTFactive· E
    MOORE JR, TROY DTNgranted 2019-05-24
← Back to WB4TDM License history →