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

W1IKU callsign genealogy

Currently held by FISHBACK, WILLIAM H

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 W1IKU's current licensee, walking backwards.

  1. W1JEactive· E
    TUTTLE, ROBERT SSCgranted 2021-04-09
  2. K4XLRactive· G
    Oliver 261, Jeffrey DTNgranted 2017-08-01
  3. KM4QZTcancelled· T
    Oliver, Jeffrey DTNgranted 2016-02-10cancelled 2017-08-01

Successor callsigns

Callsigns held now by people who previously held W1IKU.

No current licensee on record previously held this callsign.