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

WM9F callsign genealogy

Currently held by Cartnal, Jeffrey G

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 WM9F's current licensee, walking backwards.

  1. WN9GDXcancelled· E
    Cartnal, Jeffrey GMOgranted 2012-07-06cancelled 2015-03-03
  2. WB9TZVcancelled· N
    CARTNAL, JEFFREY GMOgranted 1994-04-19cancelled 2002-09-13

Successor callsigns

Callsigns held now by people who previously held WM9F.

  1. W9VSactive· E
    Thostenson, Gary CWIgranted 2017-02-22
  2. N6TACexpired· E
    Nunez, Arturo RCAgranted 2013-02-12cancelled 2025-02-13

All historical holders

Every license row we've seen with the callsign WM9F, oldest first.

  • Thostenson, Gary C WI
    2007-05-01 → cancelled 2007-05-22
  • Nunez, Arturo R CA
    2013-01-08 → cancelled 2013-02-12
  • Cartnal, Jeffrey G MO
    2025-01-04 active
← Back to WM9F License history →