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

W6MZJ callsign genealogy

Currently held by WHITNEY, JAMES 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 W6MZJ's current licensee, walking backwards.

  1. KF6LPVcancelled· T
    WHITNEY, JAMES WFLgranted 1997-06-04cancelled 2004-03-26

Successor callsigns

Callsigns held now by people who previously held W6MZJ.

  1. W6MJZactive· G
    WHITNEY, JAMES WTNgranted 2024-11-14

All historical holders

Every license row we've seen with the callsign W6MZJ, oldest first.

  • STEWART, DEANE C CA
    1988-04-12 → cancelled 2000-04-13
  • WHITNEY, JAMES W FL
    2004-03-26 → cancelled 2004-12-10