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

W6MK callsign genealogy

Currently held by KIESNER, CHARLES M

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 W6MK's current licensee, walking backwards.

  1. KE6EEactive· E
    COOK, RICHARD JCAgranted 2023-04-11
  2. KE6IIcancelled· E
    Cook, Richard JCAgranted 2020-08-04cancelled 2023-04-11
  3. K6FZactive· E
    Delmas, SebastienCAgranted 2022-08-23
  4. KN6UZQcancelled· E
    Delmas, SebastienCAgranted 2022-07-06cancelled 2022-08-23

Successor callsigns

Callsigns held now by people who previously held W6MK.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign W6MK, oldest first.

  • KIESNER, CHARLES M CA
    2008-01-08 → cancelled 2020-03-12
  • Ferro Jr, Michael P CA
    2020-03-31 active
← Back to W6MK License history →