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Confidence: Medium · Source: FCC ULS · As of 2026-09-11

KB4SWD callsign genealogy

Currently held by MINNICK, WILLIAM MICHAEL

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 KB4SWD's current licensee, walking backwards.

  1. WM3Cactive· E
    CHAPMAN, RAYMOND RVAgranted 2022-04-08
  2. KQ4XJcancelled· E
    CHAPMAN, RAYMOND RVAgranted 2013-05-28cancelled 2022-04-08
  3. KD4NMV
    no FCC ULS record on file

Successor callsigns

Callsigns held now by people who previously held KB4SWD.

  1. WV4MMcancelled· E
    MINNICK, WILLIAM MVAgranted 2001-04-27cancelled 2003-01-31

All historical holders

Every license row we've seen with the callsign KB4SWD, oldest first.

  • MINNICK, WILLIAM M VA
    1996-04-15 → cancelled 2001-04-27
  • MINNICK, WILLIAM MICHAEL VA
    2020-03-20 active
← Back to KB4SWD License history →