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Confidence: Medium · Source: FCC ULS · As of 2026-09-11

KB9MJS callsign genealogy

Currently held by FRODERMAN, TIMOTHY C

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 KB9MJS's current licensee, walking backwards.

  1. KC9DCJcancelled· T
    Stewart, Matthew JILgranted 2003-01-29cancelled 2008-05-10

Successor callsigns

Callsigns held now by people who previously held KB9MJS.

  1. N7MJSactive· E
    Stewart, Matthew JWAgranted 2026-01-13

All historical holders

Every license row we've seen with the callsign KB9MJS, oldest first.

  • FRODERMAN, TIMOTHY C IN
    1996-01-12 → cancelled 2008-01-15
  • Stewart, Matthew J WA
    2008-05-10 → cancelled 2016-01-12
← Back to KB9MJS License history →