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

KC5FDO callsign genealogy

Currently held by Horner, Jonathan E

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 KC5FDO's current licensee, walking backwards.

  1. KO4WYOcancelled· T
    Horner, Jonathan EFLgranted 2022-02-22cancelled 2024-08-23

Successor callsigns

Callsigns held now by people who previously held KC5FDO.

  1. KI5SKIactive· T
    Johnson, Shaina KLAgranted 2021-01-22

All historical holders

Every license row we've seen with the callsign KC5FDO, oldest first.

  • GENARO, JOHN C TX
    1994-03-29 → cancelled 2006-03-30
  • Johnson, Shaina K LA
    2020-05-27 → cancelled 2021-01-22
  • Horner, Jonathan E FL
    2024-08-23 active
← Back to KC5FDO License history →