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

WI7KU callsign genealogy

Currently held by CLARKE JR, MICHAEL J

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 WI7KU's current licensee, walking backwards.

  1. W7IKPcancelled· E
    CLARKE JR, MICHAEL JUTgranted 2012-01-27cancelled 2015-06-02
  2. KG7ANcancelled· E
    CLARKE JR, MICHAEL JUTgranted 2005-02-26cancelled 2012-01-27

Successor callsigns

Callsigns held now by people who previously held WI7KU.

  1. WQ7Sactive· E
    CLARKE JR, MICHAEL JUTgranted 2025-04-23