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

KK0SD callsign genealogy

Currently held by MAYFIELD, GARY 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 KK0SD's current licensee, walking backwards.

  1. KS5Zactive· E
    Bajuk, Terence GTXgranted 2017-01-13
  2. KE5BLcancelled· E
    Bajuk, Terence GTXgranted 1998-02-27cancelled 2007-03-27

Successor callsigns

Callsigns held now by people who previously held KK0SD.

  1. N0SDactive· E
    MAYFIELD, GARY JSDgranted 2024-12-27
← Back to KK0SD License history →