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

W0WSP callsign genealogy

Currently held by LINDNER, DIRK A

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 W0WSP's current licensee, walking backwards.

  1. WA0WSPcancelled· E
    LINDNER, DIRK AMNgranted 2012-12-21cancelled 2018-07-17
  2. W9WSactive· E
    Radke, Richard AWIgranted 2025-03-29
  3. K9RSWcancelled· E
    Radke, Richard AWIgranted 1999-05-05cancelled 2005-02-25
  4. WB9UFDcancelled· G
    RADKE, RICHARD Acancelled 1999-05-05

Successor callsigns

Callsigns held now by people who previously held W0WSP.

  1. AA0BHactive· E
    Aldrich, Douglas VTNgranted 2026-04-08

All historical holders

Every license row we've seen with the callsign W0WSP, oldest first.

  • Aldrich, Douglas V TN
    2014-12-17 → cancelled 2016-06-28
  • LINDNER, DIRK A MN
    2018-07-17 active
← Back to W0WSP License history →