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

K1YK callsign genealogy

Currently held by Ichikawa, Yoshiharu

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 K1YK's current licensee, walking backwards.

  1. KC1KSWcancelled· E
    Byron, Frank ANHgranted 2018-12-28cancelled 2019-08-20

Successor callsigns

Callsigns held now by people who previously held K1YK.

  1. N1VNLactive· E
    Ichikawa, YoshiharuGAgranted 2017-08-01

All historical holders

Every license row we've seen with the callsign K1YK, oldest first.

  • REED, ROBERT J ME
    2010-07-02 → cancelled 2014-03-12
  • Ichikawa, Yoshiharu GA
    2016-04-01 → cancelled 2017-08-01
  • Byron, Frank A NH
    2019-08-20 active
← Back to K1YK License history →