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

WU1J callsign genealogy

Currently held by Kamoshita, Mitsuo

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 WU1J's current licensee, walking backwards.

  1. W6OKGcancelled· E
    Kamoshita, MitsuoNYgranted 2007-11-16cancelled 2010-02-09
  2. N2VQactive· E
    Igland, Frode OFLgranted 2017-04-14
  3. WB6Factive· E
    Wallis, Michele MWAgranted 2019-05-10
  4. KJ7EFYcancelled· E
    Wallis, Michele MWAgranted 2019-02-26cancelled 2019-05-10

Successor callsigns

Callsigns held now by people who previously held WU1J.

  1. WA6MKactive· E
    Kamoshita, MitsuoCAgranted 2026-03-24
← Back to WU1J License history →