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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

N6OX callsign genealogy

Currently held by GRIMMICK, ROBERT W

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 N6OX's current licensee, walking backwards.

  1. WS6Oactive· E
    Zientak, Michael JMIgranted 2026-06-05
  2. W8AGQcancelled· E
    Zientak, Michael JMIgranted 2026-02-24cancelled 2026-06-05
  3. KF8FQRcancelled· T
    Zientak, Michael JMIgranted 2026-01-23cancelled 2026-02-24

Successor callsigns

Callsigns held now by people who previously held N6OX.

  1. K6ERFactive· E
    RUSSELL, ROBERT JCAgranted 2016-05-24
← Back to N6OX License history →