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

WZ0OZT callsign genealogy

Currently held by Riviera, David

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 WZ0OZT's current licensee, walking backwards.

  1. WE4YDLcancelled· G
    Riviera, D JMNgranted 2018-05-25cancelled 2018-11-06
  2. N0NYXcancelled· G
    Riviera, D JMNgranted 2017-04-07cancelled 2018-05-25
  3. WX0ZZZcancelled· G
    Riviera, David JMNgranted 2015-05-02cancelled 2017-04-07
  4. K0DJRactive· A
    ROSENMAN, DAVIDMNgranted 2017-10-11
  5. KA9PMKcancelled· A
    Rosenman, DavidMNgranted 2017-09-07cancelled 2017-10-11

Successor callsigns

Callsigns held now by people who previously held WZ0OZT.

  1. WO7VEScancelled· G
    Riviera, DavidMNgranted 2019-07-06cancelled 2021-11-02
← Back to WZ0OZT License history →