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

NB4Z callsign genealogy

Currently held by Ring III, John G

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 NB4Z's current licensee, walking backwards.

  1. KY4BZcancelled· E
    Ring III, John GGAgranted 2020-08-24cancelled 2020-12-15
  2. KO4GOUcancelled· E
    Ring III, John GGAgranted 2020-08-24cancelled 2020-11-02

Successor callsigns

Callsigns held now by people who previously held NB4Z.

  1. K4ECactive· E
    Clark, James AGAgranted 2018-11-24

All historical holders

Every license row we've seen with the callsign NB4Z, oldest first.

  • OWENS, RODNEY C NC
    2004-05-26 → cancelled 2016-08-24
  • Clark, James A GA
    2016-09-13 → cancelled 2018-11-24
  • Ring III, John G GA
    2020-12-15 active
← Back to NB4Z License history →