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

N9DMA callsign genealogy

Currently held by MATIAS, DAVID

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 N9DMA's current licensee, walking backwards.

  1. KD9QOQcancelled· G
    MATIAS, DAVIDWIgranted 2020-10-19cancelled 2020-11-06

Successor callsigns

Callsigns held now by people who previously held N9DMA.

  1. W7XFScancelled· E
    Olson, Tracy ANVgranted 2018-03-27cancelled 2022-10-25
  2. W9JEAexpired· G
    AUSENBAUGH, JAMES EINgranted 2009-02-21cancelled 2021-04-09

All historical holders

Every license row we've seen with the callsign N9DMA, oldest first.

  • Olson, Tracy A NV
    2016-03-05 → cancelled 2018-03-27
  • MATIAS, DAVID WI
    2020-11-06 active
  • AUSENBAUGH, JAMES E
    — → cancelled 1999-04-08
← Back to N9DMA License history →