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

K9XXY callsign genealogy

Currently held by ZEMANEK, GREGORY W

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 K9XXY's current licensee, walking backwards.

  1. N4XXYcancelled· G
    ZEMANEK, GREGORY WTNgranted 2012-03-27cancelled 2013-12-24
  2. KB4REBcancelled· G
    ZEMANEK, GREGORY WTNgranted 2007-07-10cancelled 2012-03-27
  3. KB9JXYcancelled· T
    ZEMANEK, GREGORY WTNgranted 2005-03-02cancelled 2007-07-10

Successor callsigns

Callsigns held now by people who previously held K9XXY.

  1. K4XYXcancelled· G
    ZEMANEK, GREGORY WTNgranted 2014-11-01cancelled 2017-04-01
← Back to K9XXY License history →