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

AB0V callsign genealogy

Currently held by Bolstad, Gregory D

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 AB0V's current licensee, walking backwards.

  1. KI0QRcancelled· E
    Bolstad, Gregory DMNgranted 1999-07-27cancelled 2000-05-02
  2. KC0GCIcancelled· G
    BOLSTAD, GREGORY DMNgranted 1999-07-27cancelled 1999-08-27

Successor callsigns

Callsigns held now by people who previously held AB0V.

  1. K4IUactive· E
    REGENNITTER, FREDERICK JMNgranted 2026-09-01
← Back to AB0V License history →