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

AB1BC callsign genealogy

Currently held by Butler, Michael W

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 AB1BC's current licensee, walking backwards.

  1. KB1IICcancelled· E
    Butler, Michael WMEgranted 2002-04-02cancelled 2002-06-19
  2. KB1IBUcancelled· G
    BUTLER, MICHAEL WMEgranted 2002-04-02cancelled 2002-05-02

Successor callsigns

Callsigns held now by people who previously held AB1BC.

  1. N1ZBactive· E
    Butler, Michael WMEgranted 2022-06-07
← Back to AB1BC License history →