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

AD0SU callsign genealogy

Currently held by DALKE, WILLIAM 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 AD0SU's current licensee, walking backwards.

  1. K0KKJcancelled· E
    DALKE, WILLIAM DCOgranted 2015-12-01cancelled 2016-02-29
  2. KD0MKKcancelled· G
    DALKE, WILLIAM DCOgranted 2010-07-15cancelled 2015-12-01

Successor callsigns

Callsigns held now by people who previously held AD0SU.

  1. K0CEZactive· E
    DALKE, WILLIAM DCOgranted 2022-09-24
← Back to AD0SU License history →