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

AA5ZT callsign genealogy

Currently held by Cornelsen, Michael L

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 AA5ZT's current licensee, walking backwards.

  1. AF8FWcancelled· E
    Cornelsen, Michael LOKgranted 2017-05-26cancelled 2017-07-11
  2. AF9YScancelled· E
    Cornelsen, Michael LOKgranted 2016-12-24cancelled 2017-05-26
  3. W9YSHcancelled· E
    CORNELSEN, MICHAEL LOKgranted 2016-08-02cancelled 2016-12-24
  4. KG5OIMcancelled· T
    Cornelsen, Michael LOKgranted 2016-07-13cancelled 2016-08-02

Successor callsigns

Callsigns held now by people who previously held AA5ZT.

  1. KA5Mactive· E
    STEWART, MARSHALL GLAgranted 2026-08-07
← Back to AA5ZT License history →