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

KD7FK callsign genealogy

Currently held by KLEIN, THOMAS H

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 KD7FK's current licensee, walking backwards.

  1. WF6Wactive· E
    Wachi, IsaoORgranted 2019-02-01
  2. AG7RJcancelled· E
    Wachi, IsaoORgranted 2018-12-13cancelled 2019-02-01

Successor callsigns

Callsigns held now by people who previously held KD7FK.

  1. N7BIactive· E
    KLEIN, THOMAS HTXgranted 2020-07-10

All historical holders

Every license row we've seen with the callsign KD7FK, oldest first.

  • KLEIN, THOMAS H WA
    1991-11-05 → cancelled 2000-10-07
  • Krug, Frank G ID
    2016-12-09 active
← Back to KD7FK License history →