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

AI4VT callsign genealogy

Currently held by Lent, Roger S

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 AI4VT's current licensee, walking backwards.

  1. N4MHBactive· E
    Beringer, Martin HFLgranted 2017-03-31
  2. W9MHBcancelled· E
    Beringer, Martin HFLgranted 2008-02-26cancelled 2017-03-31
  3. KC9MTEactive· T
    Ehemann, Michael TWIgranted 2021-02-13
  4. KC9AIQcancelled· T
    Ehemann, Michael TWIgranted 2011-07-26cancelled 2021-02-13

Successor callsigns

Callsigns held now by people who previously held AI4VT.

No current licensee on record previously held this callsign.

← Back to AI4VT License history →