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

NR5Z callsign genealogy

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 NR5Z's current licensee, walking backwards.

  1. W5MJHactive· T
    Helms, Michael JLAgranted 2019-03-05
  2. N0MJHcancelled· T
    Helms, Michael JLAgranted 2017-03-03cancelled 2019-03-05
  3. KM4ZXHcancelled· T
    Helms, Michael JNCgranted 2016-12-27cancelled 2017-03-03

Successor callsigns

Callsigns held now by people who previously held NR5Z.

  1. W5MJHcancelled· E
    HUNZELMAN, MURRAY JTXgranted 1998-05-11cancelled 2000-04-25

All historical holders

Every license row we've seen with the callsign NR5Z, oldest first.

  • HUNZELMAN, MURRAY J TX
    2020-02-12 active
  • —
    — → cancelled 1998-05-11
← Back to NR5Z License history →