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

NK6U callsign genealogy

Currently held by BAKER COUNTY 911 COMMUNICATIONS CENTER A

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 NK6U's current licensee, walking backwards.

  1. K6KKNcancelled· E
    Martin, Robert DCAgranted 2001-10-05cancelled 2007-02-14
  2. WB6DZCcancelled· E
    Martin, Robert DCAgranted 1999-01-11cancelled 2001-10-05

Successor callsigns

Callsigns held now by people who previously held NK6U.

  1. K7BCCcancelled
    BAKER COUNTY OFFICE OF EMERGENCY MANAGEMENT ARCORgranted 2004-04-28cancelled 2004-09-28

All historical holders

Every license row we've seen with the callsign NK6U, oldest first.

  • BAKER COUNTY 911 COMMUNICATIONS CENTER A OR
    1998-12-15 → cancelled 2004-04-28
  • Martin, Robert D CA
    2016-12-07 active