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

KD8YX callsign genealogy

Currently held by Boyer, James M

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 KD8YX's current licensee, walking backwards.

  1. N2NZScancelled· E
    RYAN, MARK EMIgranted 2018-02-03cancelled 2021-08-28
  2. N8XZBcancelled· G
    RYAN, MARK EMIgranted 2013-03-07cancelled 2018-02-03

Successor callsigns

Callsigns held now by people who previously held KD8YX.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign KD8YX, oldest first.

  • Boyer, James M MI
    2004-11-29 → cancelled 2017-02-25
  • RYAN, MARK E MI
    2021-08-28 active
← Back to KD8YX License history →