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

K9FOX callsign genealogy

Currently held by MAC KINNON, MARILYN 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 K9FOX's current licensee, walking backwards.

  1. K9FXZcancelled· T
    Skidmore, Matthew MMDgranted 2009-07-25cancelled 2010-02-13
  2. KB3IKGcancelled· T
    Skidmore, Matthew MMDgranted 2002-07-29cancelled 2009-07-25

Successor callsigns

Callsigns held now by people who previously held K9FOX.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign K9FOX, oldest first.

  • MAC KINNON, MARILYN M IL
    1998-01-07 → cancelled 2010-01-08
  • Skidmore, Matthew M MD
    2019-12-18 active