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

KF6YK callsign genealogy

Currently held by CARLSON, RONALD F

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 KF6YK's current licensee, walking backwards.

  1. KZ5RFcancelled· A
    CARLSON, RONALD FCAgranted 2021-02-23cancelled 2021-10-08

Successor callsigns

Callsigns held now by people who previously held KF6YK.

  1. KZ5RFcancelled· A
    CARLSON, RONALD FCAgranted 2021-02-23cancelled 2021-10-08
  2. KZ5RFcancelled· A
    CARLSON, RONALD FCAgranted 2016-03-02cancelled 2020-04-10

All historical holders

Every license row we've seen with the callsign KF6YK, oldest first.

  • CARLSON, RONALD F CA
    2003-09-10 → cancelled 2006-05-13
  • CARLSON, RONALD F CA
    2020-04-10 → cancelled 2021-02-23
  • CARLSON, RONALD F CA
    2021-10-08 active
← Back to KF6YK License history →