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

KD0FC callsign genealogy

Currently held by Harshbarger, Tom

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 KD0FC's current licensee, walking backwards.

  1. WB0OKcancelled· E
    HARSHBARGER, THOMAS WMOgranted 2018-07-17cancelled 2018-08-04
  2. AI0Factive· E
    Sakabe, JunCOgranted 2020-08-07
  3. W0JUNcancelled· E
    Sakabe, JunCOgranted 2020-07-10cancelled 2020-08-07
  4. KF0APNcancelled· G
    Sakabe, JunCOgranted 2020-06-22cancelled 2020-07-10

Successor callsigns

Callsigns held now by people who previously held KD0FC.

  1. W0BNEactive· E
    Harshbarger, TomMOgranted 2019-12-21

All historical holders

Every license row we've seen with the callsign KD0FC, oldest first.

  • GRAHAM, ALBERT T MO
    1988-03-01 → cancelled 2000-03-02
  • Harshbarger, Tom MO
    2018-08-04 → cancelled 2019-12-21
← Back to KD0FC License history →