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

K9OLM callsign genealogy

Currently held by HANSEN, MARK R

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 K9OLM's current licensee, walking backwards.

  1. KG0YLcancelled· E
    Yoshida, Nancy MNDgranted 2016-06-14cancelled 2019-10-08
  2. K9DIGactive· G
    Corney, GeorgeORgranted 2019-02-20
  3. KI7WSHcancelled· G
    Corney, GeorgeORgranted 2018-05-01cancelled 2019-02-20

Successor callsigns

Callsigns held now by people who previously held K9OLM.

  1. K9XQactive· E
    HANSEN, MARK RMNgranted 2020-07-15
← Back to K9OLM License history →