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

KI7YLS callsign genealogy

Currently held by THOMPSON II, KENNETH M

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 KI7YLS's current licensee, walking backwards.

  1. W7KMTcancelled· T
    THOMPSON II, KENNETH MWAgranted 2018-06-12cancelled 2021-12-10

Successor callsigns

Callsigns held now by people who previously held KI7YLS.

  1. W7KMTcancelled· T
    THOMPSON II, KENNETH MWAgranted 2018-06-12cancelled 2021-12-10

All historical holders

Every license row we've seen with the callsign KI7YLS, oldest first.

  • THOMPSON II, KENNETH M WA
    2018-05-24 → cancelled 2018-06-12
  • THOMPSON II, KENNETH M WA
    2021-12-10 active