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

KC7X callsign genealogy

Currently held by TYO, RICHARD A

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 KC7X's current licensee, walking backwards.

  1. KC8Lactive· E
    Sauder, Ronald JOHgranted 2018-09-05
  2. KD8IMYcancelled· E
    Sauder, Ronald JOHgranted 2008-05-07cancelled 2008-11-29

Successor callsigns

Callsigns held now by people who previously held KC7X.

  1. K7NLcancelled· E
    SHELDON, DAVID RAZgranted 2007-03-01cancelled 2016-08-02
← Back to KC7X License history →