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

KU5D callsign genealogy

Currently held by Lamb Ii, John K

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 KU5D's current licensee, walking backwards.

  1. AF5LKcancelled· E
    Lamb II, John KARgranted 2008-01-01cancelled 2016-04-09
  2. W5AHPcancelled· E
    Lamb II, John KARgranted 2008-01-01cancelled 2013-07-26
  3. AD5SZcancelled· E
    Lamb II, John KARgranted 2002-09-21cancelled 2008-01-01
  4. AD5QMcancelled· E
    Lamb II, John KARgranted 2002-09-21cancelled 2004-11-03
  5. WL7CAactive· E
    Lamb II, John KARgranted 2026-07-28

Successor callsigns

Callsigns held now by people who previously held KU5D.

  1. WL7CAactive· E
    Lamb II, John KARgranted 2026-07-28
  2. WL7CAcancelled· E
    Lamb II, John KARgranted 2002-09-21cancelled 2004-03-16

All historical holders

Every license row we've seen with the callsign KU5D, oldest first.

  • Lamb Ii, John K AR
    2002-04-13 → cancelled 2002-09-21
  • MC QUAY, DOUGLAS V NC
    2005-06-24 → cancelled 2016-01-02
  • Lamb II, John K AR
    2026-01-17 → cancelled 2026-07-28
← Back to KU5D License history →