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

K6ZQ callsign genealogy

Currently held by O BRIEN, WILLIAM C

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 K6ZQ's current licensee, walking backwards.

  1. N3JHQcancelled· E
    QUENSE, JOHN HCAgranted 2006-09-09cancelled 2007-06-16
  2. KF6JZEcancelled· T
    QUENSE, JOHN HCAgranted 1997-04-02cancelled 2006-09-09

Successor callsigns

Callsigns held now by people who previously held K6ZQ.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign K6ZQ, oldest first.

  • O BRIEN, WILLIAM C CA
    1997-04-07 → cancelled 2002-02-14
  • QUENSE, JOHN H CA
    2017-03-25 active
← Back to K6ZQ License history →