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

WA6DU callsign genealogy

Currently held by HIRAISHI, KAZUE

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 WA6DU's current licensee, walking backwards.

  1. K6DULcancelled· E
    HIRAISHI, KAZUEORgranted 2014-07-04cancelled 2016-07-26
  2. KG7JOFcancelled· G
    HIRAISHI, KAZUEORgranted 2014-03-10cancelled 2014-07-04

Successor callsigns

Callsigns held now by people who previously held WA6DU.

  1. KK9Pactive· E
    HIRAISHI, KAZUEORgranted 2021-07-31

All historical holders

Every license row we've seen with the callsign WA6DU, oldest first.

  • MABUHAY DX CA
    1998-09-23 → cancelled 2000-06-05
  • HIRAISHI, KAZUE OR
    2016-07-26 → cancelled 2021-07-31
← Back to WA6DU License history →