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

KZ6R callsign genealogy

Currently held by Sugai, Fumihito

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 KZ6R's current licensee, walking backwards.

  1. AK6IPcancelled· E
    Sugai, FumihitoCAgranted 2023-08-22cancelled 2024-09-21
  2. KO6AYKcancelled· E
    Sugai, FumihitoCAgranted 2023-08-22cancelled 2024-08-26

Successor callsigns

Callsigns held now by people who previously held KZ6R.

  1. K6ZJactive· E
    JOHNSON, ANDREW LGAgranted 2022-08-30

All historical holders

Every license row we've seen with the callsign KZ6R, oldest first.

  • STEINMETZ, JOSEPH R CA
    2008-06-10 → cancelled 2020-08-15
  • JOHNSON, ANDREW L CA
    2020-09-04 → cancelled 2022-08-30
  • Sugai, Fumihito CA
    2024-09-21 active
← Back to KZ6R License history →