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

KD8TO callsign genealogy

Currently held by PRATT, BUD E

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 KD8TO's current licensee, walking backwards.

  1. AA9XTcancelled· E
    MASON, THOMAS OILgranted 2016-02-02cancelled 2021-05-29
  2. KC9BUcancelled· A
    MASON, THOMAS OILgranted 1996-04-15cancelled 2000-04-21

Successor callsigns

Callsigns held now by people who previously held KD8TO.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign KD8TO, oldest first.

  • PRATT, BUD E MI
    1994-07-14 → cancelled 2006-07-15
  • MASON, THOMAS O OH
    2021-05-29 active
← Back to KD8TO License history →