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

K1AO callsign genealogy

Currently held by THOMPSON, ROBERT 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 K1AO's current licensee, walking backwards.

  1. K1AOBcancelled· E
    THOMPSON, ROBERT ACTgranted 1996-07-11cancelled 2002-03-07
  2. N1BFV
    no FCC ULS record on file

Successor callsigns

Callsigns held now by people who previously held K1AO.

  1. K4AOcancelled· E
    SIMONTON, RONALD HKYgranted 1999-11-03cancelled 2006-10-02

All historical holders

Every license row we've seen with the callsign K1AO, oldest first.

  • SIMONTON, RONALD H KY
    1994-05-24 → cancelled 1999-11-03
  • THOMPSON, ROBERT A CT
    2022-01-13 active
← Back to K1AO License history →