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

KO6M callsign genealogy

Currently held by Kurpieski Jr, Joseph Z

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 KO6M's current licensee, walking backwards.

  1. W6DMWcancelled· E
    WEST, DAVID MCAgranted 2020-10-23cancelled 2023-01-24
  2. KN6IOBcancelled· G
    WEST, DAVID MCAgranted 2020-03-30cancelled 2020-10-23

Successor callsigns

Callsigns held now by people who previously held KO6M.

  1. KK4Qactive· E
    KURPIESKI JR, JOSEPH ZORgranted 2018-08-10

All historical holders

Every license row we've seen with the callsign KO6M, oldest first.

  • BROWN, ROBERT H CA
    1994-05-31 → cancelled 2006-06-01
  • Kurpieski Jr, Joseph Z CA
    2007-04-17 → cancelled 2008-11-07
  • Croyts, Harold S CA
    2011-01-04 → cancelled 2023-01-05
  • WEST, DAVID M CA
    2023-01-24 active
← Back to KO6M License history →