Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA4RLM callsign genealogy
Currently held by THOMPSON, MELVIN H
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 WA4RLM's current licensee, walking backwards.
- MIMMS, RICHARD LUTgranted 2008-03-29cancelled 2016-05-17
Successor callsigns
Callsigns held now by people who previously held WA4RLM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WA4RLM, oldest first.
- THOMPSON, MELVIN H TN1996-04-05 → cancelled 2008-04-08
- MIMMS, RICHARD L UT2016-05-17 active