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

K6TON callsign genealogy

Currently held by MASTRIA, ANTONIO N

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 K6TON's current licensee, walking backwards.

  1. K3TONcancelled· G
    MASTRIA, ANTONIO NMDgranted 2020-09-04cancelled 2021-03-12
  2. KC3PVBcancelled· G
    MASTRIA, ANTONIO NMDgranted 2020-02-18cancelled 2020-09-04
  3. KC3OWDcancelled· G
    MASTRIA, ANTONIO NMDgranted 2020-02-18cancelled 2020-08-13

Successor callsigns

Callsigns held now by people who previously held K6TON.

  1. AA6TYactive· E
    ESTARAS, ANTONIO RCAgranted 2019-02-20

All historical holders

Every license row we've seen with the callsign K6TON, oldest first.

  • ESTARAS, ANTONIO R CA
    2009-09-22 → cancelled 2019-02-20
  • MASTRIA, ANTONIO N CA
    2021-03-12 active
← Back to K6TON License history →