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

AB0XY callsign genealogy

Currently held by Fiedler, Byron 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 AB0XY's current licensee, walking backwards.

  1. KC0OXIcancelled· E
    Fiedler, Byron JMNgranted 1996-01-26cancelled 2003-03-25
  2. KB0VCWcancelled· G
    Fiedler, Byron JMNgranted 1996-01-26cancelled 2003-01-27

Successor callsigns

Callsigns held now by people who previously held AB0XY.

  1. N8BFactive· E
    Fiedler, Byron JMNgranted 2023-08-30
← Back to AB0XY License history →