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

AA0CA callsign genealogy

Currently held by THOMPSON, FRED L

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 AA0CA's current licensee, walking backwards.

  1. WW7BBcancelled· E
    Schaller, SandersSDgranted 2019-04-19cancelled 2026-06-02
  2. WW7TTactive· E
    Sampson, TrentCAgranted 2021-06-26
  3. AJ6SBcancelled· E
    Sampson, TrentCAgranted 2021-03-15cancelled 2021-06-26

Successor callsigns

Callsigns held now by people who previously held AA0CA.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign AA0CA, oldest first.

  • THOMPSON, FRED L CT
    2010-08-25 → cancelled 2022-10-20
  • Schaller, Sanders SD
    2026-06-02 active
← Back to AA0CA License history →