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

W6TAO callsign genealogy

Currently held by WO RADIO CLUB

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 W6TAO's current licensee, walking backwards.

  1. KI7FRBcancelled
    WO RADIO CLUBWAgranted 2016-07-12cancelled 2016-08-12

Successor callsigns

Callsigns held now by people who previously held W6TAO.

  1. KF7LXcancelled· A
    THOMPSEN, TODD RWAgranted 2010-02-09cancelled 2012-07-03

All historical holders

Every license row we've seen with the callsign W6TAO, oldest first.

  • BROWN JR, WILLIAM C WA
    1999-03-11 → cancelled 2008-06-20
  • THOMPSEN, TODD R WA
    2009-08-14 → cancelled 2010-02-09
  • WO RADIO CLUB WA
    2016-08-12 active