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

W5TRM callsign genealogy

Currently held by Lilly, Marc A

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 W5TRM's current licensee, walking backwards.

  1. W5GEOactive· G
    Shield, Mark STXgranted 2024-03-19
  2. KJ5EPJcancelled· T
    Shield, Mark STXgranted 2024-02-22cancelled 2024-03-19

Successor callsigns

Callsigns held now by people who previously held W5TRM.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign W5TRM, oldest first.

  • MAULDIN, DENNIS R TN
    1994-12-20 → cancelled 2006-12-21
  • Lilly, Marc A TX
    2021-06-11 active