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

K6TR callsign genealogy

Currently held by MARSTON, ROBERT 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 K6TR's current licensee, walking backwards.

  1. K2HZOcancelled· E
    Kobetz, Paul RCAgranted 2015-10-16cancelled 2022-07-23
  2. KK6WMAcancelled· G
    Kobetz, Paul RCAgranted 2015-09-25cancelled 2015-10-16

Successor callsigns

Callsigns held now by people who previously held K6TR.

  1. AA6XEactive· E
    MARSTON, ROBERT TCAgranted 2020-07-03

All historical holders

Every license row we've seen with the callsign K6TR, oldest first.

  • SECONDARI, RICHARD M CA
    2003-09-09 → cancelled 2005-07-02
  • MARSTON, ROBERT T CA
    2017-05-02 → cancelled 2020-07-03
  • Kobetz, Paul R CA
    2022-07-23 active
← Back to K6TR License history →