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

N0ZTZ callsign genealogy

Currently held by FANSLER, MICHAEL 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 N0ZTZ's current licensee, walking backwards.

  1. K5JOAcancelled· G
    FANSLER, MICHAEL JCOgranted 2014-02-28cancelled 2019-12-17
  2. KE5AACcancelled· T
    Fansler, Michael JOKgranted 2004-01-12cancelled 2004-04-23

Successor callsigns

Callsigns held now by people who previously held N0ZTZ.

  1. K0DGOcancelled· G
    FANSLER, MICHAEL JOKgranted 2020-03-07cancelled 2026-02-20

All historical holders

Every license row we've seen with the callsign N0ZTZ, oldest first.

  • YOSHIKAWA, PAUL R CO
    1993-12-28 → cancelled 2005-12-29
  • FANSLER, MICHAEL J CO
    2019-12-17 → cancelled 2020-03-07
← Back to N0ZTZ License history →