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

AE5BO callsign genealogy

Currently held by Johnson, Mark A

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 AE5BO's current licensee, walking backwards.

  1. KD5KFZcancelled· E
    Johnson, Mark ATXgranted 2002-06-05cancelled 2007-06-01
  2. KB0IHQcancelled· P
    JOHNSON, MARK ATXgranted 1996-01-22cancelled 2000-05-24

Successor callsigns

Callsigns held now by people who previously held AE5BO.

  1. AE5MJactive· E
    Johnson, Mark ATXgranted 2017-03-30
← Back to AE5BO License history →