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

W7CS callsign genealogy

Currently held by Farmer, John D

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 W7CS's current licensee, walking backwards.

  1. AE5EXcancelled· E
    Farmer, John DOKgranted 2015-02-03cancelled 2017-09-06
  2. K0FAAactive· T
    GILLMANN, AUSTIN RMNgranted 2022-04-22
  3. KF0ICFcancelled· T
    GILLMANN, AUSTIN RMNgranted 2022-02-28cancelled 2022-04-22

Successor callsigns

Callsigns held now by people who previously held W7CS.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign W7CS, oldest first.

  • SMALLHOUSE, CHARLES S AZ
    2006-08-08 → cancelled 2015-08-17
  • Farmer, John D SD
    2017-09-06 active
← Back to W7CS License history →