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

WC6D callsign genealogy

Currently held by TAYLOR, MARK D

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 WC6D's current licensee, walking backwards.

  1. KF7Lactive· E
    HAYDEN, LARRY GMTgranted 2018-02-14
  2. KC7BEOcancelled· E
    HAYDEN, LARRY GMTgranted 2004-02-05cancelled 2008-05-06

Successor callsigns

Callsigns held now by people who previously held WC6D.

  1. KF7Lcancelled· E
    TAYLOR, MARK DNVgranted 2003-11-04cancelled 2006-04-04

All historical holders

Every license row we've seen with the callsign WC6D, oldest first.

  • TAYLOR, MARK D CA
    1999-01-08 → cancelled 2003-11-04
  • TAYLOR, MARK D NV
    2026-02-10 active