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

KC0IGB callsign genealogy

Currently held by Grezak, David P

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 KC0IGB's current licensee, walking backwards.

  1. KG4DNEactive· G
    Grezak, David PCOgranted 2026-07-29
  2. K0SSSactive· T
    Porciuncula, Sherwin VNVgranted 2021-08-27
  3. KK7AFCcancelled· T
    Porciuncula, Sherwin VNVgranted 2021-08-09cancelled 2021-08-27

Successor callsigns

Callsigns held now by people who previously held KC0IGB.

  1. K0SSScancelled· G
    Grezak, David PCOgranted 2011-03-15cancelled 2016-10-21
← Back to KC0IGB License history →