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

K7ZZZ callsign genealogy

Currently held by Janowski, Michael S

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 K7ZZZ's current licensee, walking backwards.

  1. N6ZZZactive· E
    Zhao, YingjieCAgranted 2023-06-09
  2. K6KZEcancelled· T
    Zhao, YingjieCAgranted 2022-08-16cancelled 2023-06-09
  3. KN6VFUcancelled· T
    Zhao, YingjieCAgranted 2022-07-28cancelled 2022-08-16

Successor callsigns

Callsigns held now by people who previously held K7ZZZ.

  1. N7LEactive
    CENTRAL OREGON DX CLUBORgranted 2026-01-28

All historical holders

Every license row we've seen with the callsign K7ZZZ, oldest first.

  • CENTRAL OREGON DX CLUB OR
    1997-07-11 → cancelled 2006-02-04
  • CENTRAL OREGON CONTEST CLUB OR
    2008-05-13 → cancelled 2020-05-14
  • Janowski, Michael S ID
    2020-06-01 active
← Back to K7ZZZ License history →