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

N6THC callsign genealogy

Currently held by SPARKS, JASON

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 N6THC's current licensee, walking backwards.

  1. W9THCactive· G
    Sparks, JasonCAgranted 2023-12-16

Successor callsigns

Callsigns held now by people who previously held N6THC.

  1. W9THCactive· G
    Sparks, JasonCAgranted 2023-12-16

All historical holders

Every license row we've seen with the callsign N6THC, oldest first.

  • CHADWICK, ALVIE L CA
    2008-07-01 → cancelled 2020-07-29
  • SPARKS, JASON CA
    2021-02-23 → cancelled 2023-12-16