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

N9FRE callsign genealogy

Currently held by MUELLER, DONALD W

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 N9FRE's current licensee, walking backwards.

  1. W9YRTcancelled· G
    SEIDEL, JEFFILgranted 2025-02-04cancelled 2025-04-24

Successor callsigns

Callsigns held now by people who previously held N9FRE.

  1. W9YRTcancelled· G
    SEIDEL, JEFFILgranted 2025-02-04cancelled 2025-04-24
  2. W9RZXcancelled· G
    SEIDEL, JEFFILgranted 2020-02-21cancelled 2022-04-05
  3. W9WAWcancelled· G
    SEIDEL, JEFFILgranted 2018-09-29cancelled 2019-08-09

All historical holders

Every license row we've seen with the callsign N9FRE, oldest first.

  • MUELLER, DONALD W IL
    1996-02-16 → cancelled 2008-02-19
  • SEIDEL, JEFF IL
    2016-11-08 → cancelled 2018-09-29
  • SEIDEL, JEFF IL
    2019-10-11 → cancelled 2020-02-21
  • SEIDEL, JEFF IL
    2022-08-20 → cancelled 2025-02-04
← Back to N9FRE License history →