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

AD5SZ 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 AD5SZ's current licensee, walking backwards.

  1. AD5QMcancelled· E
    Lamb II, John KARgranted 2002-09-21cancelled 2004-11-03
  2. WL7CAactive· E
    Lamb II, John KARgranted 2026-07-28
  3. KU5Dcancelled· E
    Lamb II, John KARgranted 2026-01-17cancelled 2026-07-28
  4. AF5LKcancelled· E
    Lamb II, John KARgranted 2008-01-01cancelled 2016-04-09
  5. W5AHPcancelled· E
    Lamb II, John KARgranted 2008-01-01cancelled 2013-07-26

Successor callsigns

Callsigns held now by people who previously held AD5SZ.

  1. W5AHPcancelled· E
    Lamb II, John KARgranted 2008-01-01cancelled 2013-07-26
← Back to AD5SZ License history →