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

NM9Z callsign genealogy

Currently held by Vaclavek, Jason C

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 NM9Z's current licensee, walking backwards.

  1. W6JCVcancelled· E
    Vaclavek, Jason CCAgranted 2012-03-20cancelled 2013-06-28
  2. WE6AEScancelled· T
    Vaclavek, JASON CCAgranted 2011-05-06cancelled 2012-03-20
  3. KJ6OBFcancelled· T
    Vaclavek, Jason CCAgranted 2011-04-18cancelled 2011-05-06

Successor callsigns

Callsigns held now by people who previously held NM9Z.

  1. N7BBXactive· E
    Vaclavek, Jason CWYgranted 2025-04-11

All historical holders

Every license row we've seen with the callsign NM9Z, oldest first.

  • MC GRATH, ROBERT IN
    1998-10-23 → cancelled 2010-10-26
  • Vaclavek, Jason C WY
    2023-05-19 → cancelled 2025-04-11
← Back to NM9Z License history →