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

AK6SO callsign genealogy

Currently held by Stumbo, Matthew 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 AK6SO's current licensee, walking backwards.

  1. KS6PKYcancelled· E
    Stumbo, Matthew TCAgranted 2018-11-06cancelled 2026-03-16
  2. KM6WKCcancelled· T
    Stumbo, Matthew TCAgranted 2018-10-19cancelled 2018-11-06

Successor callsigns

Callsigns held now by people who previously held AK6SO.

No current licensee on record previously held this callsign.