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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

K9XH callsign genealogy

Currently held by BOUMAN, TODD S

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 K9XH's current licensee, walking backwards.

  1. W5AGAcancelled· E
    BOUMAN, TODD SILgranted 2022-05-13cancelled 2022-07-02
  2. KD9UQKcancelled· G
    BOUMAN, TODD SILgranted 2022-03-23cancelled 2022-05-13

Successor callsigns

Callsigns held now by people who previously held K9XH.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign K9XH, oldest first.

  • LEER, JOHN O WI
    2010-03-24 → cancelled 2022-06-14
  • BOUMAN, TODD S CA
    2022-07-02 active
← Back to K9XH License history →