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

K1FUK callsign genealogy

Currently held by NADIR, MARK

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 K1FUK's current licensee, walking backwards.

  1. K3FUKcancelled· E
    NADIR, MARKNYgranted 2017-06-17cancelled 2017-07-07
  2. K9FUKactive· G
    Firestone, James CORgranted 2020-03-13
  3. KJ7MRPcancelled· G
    Firestone, James CORgranted 2020-02-21cancelled 2020-03-13

Successor callsigns

Callsigns held now by people who previously held K1FUK.

  1. N3MNcancelled· E
    NADIR, MARKNYgranted 2017-08-04cancelled 2018-04-20
← Back to K1FUK License history →