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

W4YCU callsign genealogy

Currently held by MICHAEL, CHARLES 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 W4YCU's current licensee, walking backwards.

  1. KA4CDMcancelled· G
    MICHAEL, CHARLES DFLgranted 2020-03-28cancelled 2021-01-01
  2. KO4CEPcancelled· T
    MICHAEL, CHARLES DFLgranted 2020-02-25cancelled 2020-03-28

Successor callsigns

Callsigns held now by people who previously held W4YCU.

  1. W4KIKactive· G
    MICHAEL, CHARLES DOHgranted 2021-02-06
← Back to W4YCU License history →