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

AA9XO callsign genealogy

Currently held by Tolbert, Robert P

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 AA9XO's current licensee, walking backwards.

  1. KG9OEcancelled· A
    TOLBERT, ROBERT PILgranted 1998-08-12cancelled 2000-02-04
  2. N9SPOcancelled· P
    TOLBERT, ROBERT Pcancelled 1998-08-12

Successor callsigns

Callsigns held now by people who previously held AA9XO.

  1. AA9Xactive· E
    Tolbert, Robert PILgranted 2020-11-13
← Back to AA9XO License history →