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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

N7ROK callsign genealogy

Currently held by BUROW, LYNN M

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 N7ROK's current licensee, walking backwards.

  1. N0WHLcancelled· T
    Granholm, JohnNVgranted 2025-03-21cancelled 2026-08-11
  2. KG7OJAcancelled· T
    Granholm, JohnNVgranted 2025-02-28cancelled 2025-03-21

Successor callsigns

Callsigns held now by people who previously held N7ROK.

  1. KJ7Tactive· E
    Salzer, Thomas AORgranted 2023-06-01
  2. W6ICEactive· T
    Choi, Keun JaeCAgranted 2018-01-25

All historical holders

Every license row we've seen with the callsign N7ROK, oldest first.

  • BUROW, LYNN M WA
    1991-05-07 → cancelled 2003-05-08
  • Choi, Keun Jae CA
    2006-06-24 → cancelled 2008-01-08
  • Salzer, Thomas A WA
    2010-05-21 → cancelled 2013-07-30
  • Granholm, John NV
    2026-08-11 active
← Back to N7ROK License history →