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

AI4MM callsign genealogy

Currently held by Goff, Raymond C

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 AI4MM's current licensee, walking backwards.

  1. KQ4JJCcancelled· E
    Mueller, MarkusFLgranted 2023-06-27cancelled 2023-10-03

Successor callsigns

Callsigns held now by people who previously held AI4MM.

  1. KA4DRZactive· E
    Duley, Steven EKYgranted 2019-02-23
  2. N4FONactive· E
    GOFF, RAYMOND CWIgranted 2015-11-24

All historical holders

Every license row we've seen with the callsign AI4MM, oldest first.

  • Goff, Raymond C NC
    2005-10-17 → cancelled 2006-01-28
  • Duley, Steven E KY
    2018-02-09 → cancelled 2019-02-23
  • Mueller, Markus FL
    2023-10-03 active
← Back to AI4MM License history →