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

NZ4DX callsign genealogy

Currently held by Gertsch, Dana 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 NZ4DX's current licensee, walking backwards.

  1. N2FJactive· E
    Rosado, Carlos MNYgranted 2017-08-08
  2. AC2RQcancelled· E
    Rosado, Carlos MNYgranted 2013-12-14cancelled 2017-08-08
  3. K2UOKcancelled· E
    Rosado, Carlos MNYgranted 2013-12-14cancelled 2016-01-08
  4. KC2SKOcancelled· T
    Rosado, Carlos MNYgranted 2007-11-06cancelled 2013-12-14

Successor callsigns

Callsigns held now by people who previously held NZ4DX.

  1. NN0Gactive· E
    Gertsch, Dana ACOgranted 2022-11-02
  2. KZ4Gactive
    Wireless Outback DX CrewKYgranted 2019-10-15

All historical holders

Every license row we've seen with the callsign NZ4DX, oldest first.

  • Gertsch, Dana A CO
    1999-10-28 → cancelled 2003-01-07
  • Wireless Outback DX Crew KY
    2008-11-29 → cancelled 2009-06-26
  • BENNETT II, FREDERICK A NC
    2025-05-30 active