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

KK6THM callsign genealogy

Currently held by Oberg, Maurice C

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 KK6THM's current licensee, walking backwards.

  1. KN6HMOcancelled· T
    Thomson, Gordon ACAgranted 2020-02-10cancelled 2020-03-03

Successor callsigns

Callsigns held now by people who previously held KK6THM.

  1. KK6MOactive· E
    Oberg, Maurice CCAgranted 2026-04-24

All historical holders

Every license row we've seen with the callsign KK6THM, oldest first.

  • Oberg, Maurice C CA
    2015-04-16 → cancelled 2016-07-08
  • Thomson, Gordon A CA
    2020-03-03 active