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

K7SY callsign genealogy

Currently held by Hamilton, Kamiah L

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 K7SY's current licensee, walking backwards.

  1. KK7BGLcancelled· E
    Hamilton, Kamiah LNVgranted 2021-10-07cancelled 2022-02-19

Successor callsigns

Callsigns held now by people who previously held K7SY.

  1. K7DNactive· E
    Yellen, Matthew FAKgranted 2024-12-12
  2. KZ4Jactive· E
    MASSE, GREGORY AFLgranted 2020-01-31

All historical holders

Every license row we've seen with the callsign K7SY, oldest first.

  • YAREMA, STANLEY M WA
    1997-02-12 → cancelled 2002-05-15
  • Yellen, Matthew F WA
    2004-12-21 → cancelled 2005-01-14
  • MASSE, GREGORY A FL
    2016-11-22 → cancelled 2020-01-31
  • Hamilton, Kamiah L NV
    2022-02-19 active
← Back to K7SY License history →