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

K4FUK callsign genealogy

Currently held by WHEELER, ROBERT J

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 K4FUK's current licensee, walking backwards.

  1. N3RJWcancelled· T
    WHEELER, ROBERT JFLgranted 2021-03-26cancelled 2021-06-02
  2. KO4MTKcancelled· T
    WHEELER, ROBERT JFLgranted 2021-02-18cancelled 2021-03-26

Successor callsigns

Callsigns held now by people who previously held K4FUK.

  1. K0FUKcancelled· E
    NADIR, MARKNYgranted 2016-12-28cancelled 2017-01-18

All historical holders

Every license row we've seen with the callsign K4FUK, oldest first.

  • NADIR, MARK NY
    2016-11-15 → cancelled 2016-12-28
  • WHEELER, ROBERT J FL
    2021-06-02 active
← Back to K4FUK License history →