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

KC7MTR callsign genealogy

Currently held by MAUER, JEFFREY S

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 KC7MTR's current licensee, walking backwards.

  1. N6DWBexpired· G
    Rhiel, William TCAgranted 2013-06-05cancelled 2025-08-08
  2. KB6DWBcancelled· G
    Rhiel, William TCAgranted 1994-07-08cancelled 2003-08-07

Successor callsigns

Callsigns held now by people who previously held KC7MTR.

  1. K7JSMactive· E
    MAUER, JEFFREY SWAgranted 2019-12-26
← Back to KC7MTR License history →