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

KC0LBY callsign genealogy

Currently held by Shuey, Jeffrey J

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 KC0LBY's current licensee, walking backwards.

  1. KO6DLEcancelled· T
    Olsen, Colby MCAgranted 2024-02-22cancelled 2024-03-12

Successor callsigns

Callsigns held now by people who previously held KC0LBY.

  1. NQ6Ccancelled· E
    Olsen, Michael RCAgranted 2018-03-23cancelled 2020-05-02
  2. W0JAZcancelled· E
    Shuey, Jeffrey JCOgranted 2007-06-08cancelled 2010-07-09

All historical holders

Every license row we've seen with the callsign KC0LBY, oldest first.

  • Shuey, Jeffrey J CO
    2001-07-20 → cancelled 2007-06-08
  • Olsen, Michael R CA
    2011-06-07 → cancelled 2018-03-23
  • Olsen, Colby M CA
    2024-03-12 active
← Back to KC0LBY License history →