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

KC9QAZ callsign genealogy

Currently held by WESTERMEIER, MARK R

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 KC9QAZ's current licensee, walking backwards.

  1. K9ALQcancelled· T
    WESTERMEIER, MARK RINgranted 2002-04-12cancelled 2009-06-20
  2. W1CIAactive· A
    Haaker, Donald RMAgranted 2015-05-19
  3. WA1AICcancelled· A
    Haaker, Donald RMAgranted 1998-04-09cancelled 2005-07-26

Successor callsigns

Callsigns held now by people who previously held KC9QAZ.

  1. N9OZactive· E
    WESTERMEIER, MARK RINgranted 2019-06-25
← Back to KC9QAZ License history →