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

WA9MAC callsign genealogy

Currently held by CRUM, MARYANNE

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 WA9MAC's current licensee, walking backwards.

  1. KD9WBRcancelled· T
    CRUM, MARYANNEINgranted 2022-11-23cancelled 2022-12-13

Successor callsigns

Callsigns held now by people who previously held WA9MAC.

  1. AC9MBcancelled· E
    Buchanan, Matthew WINgranted 2014-10-04cancelled 2015-05-01

All historical holders

Every license row we've seen with the callsign WA9MAC, oldest first.

  • Buchanan, Matthew W IN
    2014-06-27 → cancelled 2014-10-04
  • CRUM, MARYANNE IN
    2022-12-13 active
← Back to WA9MAC License history →