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

AB7SO callsign genealogy

Currently held by HARRIS, RICHARD T

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 AB7SO's current licensee, walking backwards.

  1. AA4CCactive· E
    WALLACE, ROY VKYgranted 2023-12-05
  2. AK4MLcancelled· E
    WALLACE, ROY VKYgranted 2012-01-04cancelled 2013-09-17
  3. KD4JQOcancelled· E
    WALLACE, ROY VKYgranted 2002-03-04cancelled 2011-09-13

Successor callsigns

Callsigns held now by people who previously held AB7SO.

No current licensee on record previously held this callsign.