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

AD7FL callsign genealogy

Currently held by Heiser Jr, Jan 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 AD7FL's current licensee, walking backwards.

  1. AB8QIcancelled· E
    Heiser Jr, Jan DNVgranted 2004-02-21cancelled 2005-04-02
  2. KC8VIBcancelled· E
    Heiser Jr, Jan DOHgranted 1995-06-07cancelled 2003-01-16
  3. KC5MDVcancelled· G
    HEISER JR, JAN DOHgranted 1995-06-07cancelled 2002-12-10

Successor callsigns

Callsigns held now by people who previously held AD7FL.

  1. AI5KJcancelled· E
    Heiser Jr, Jan DTXgranted 2014-04-29cancelled 2023-07-11
← Back to AD7FL License history →