uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-14

KF9YX callsign genealogy

Currently held by SHEELER, RUTH E

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 KF9YX's current licensee, walking backwards.

  1. KB9JAYcancelled· T
    SAMPLES, JOHN CGAgranted 2019-12-27cancelled 2020-02-11
  2. N4JSYcancelled· T
    SAMPLES, JOHN CGAgranted 2019-10-29cancelled 2019-12-27
  3. KG4LEYactive· T
    Samples, John CFLgranted 2020-09-12
  4. KO4GLIcancelled· T
    Samples, John CGAgranted 2020-08-19cancelled 2020-09-12

Successor callsigns

Callsigns held now by people who previously held KF9YX.

No current licensee on record previously held this callsign.