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

KD8MTH callsign genealogy

Currently held by Haudenschild, Michael T

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 KD8MTH's current licensee, walking backwards.

  1. KD8CGYcancelled· T
    Haudenschild, Michael TOHgranted 2005-10-21cancelled 2006-07-14

Successor callsigns

Callsigns held now by people who previously held KD8MTH.

  1. W8MTHactive· T
    Haudenschild, Michael TOHgranted 2026-06-16