Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4MSU callsign genealogy
Currently held by Smith, Jimmie 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 W4MSU's current licensee, walking backwards.
- SMITH, JIMMIEALgranted 2005-08-25cancelled 2013-05-18
Successor callsigns
Callsigns held now by people who previously held W4MSU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4MSU, oldest first.
- DUKE, WALTER A TN1995-11-13 → cancelled 2007-11-14
- Smith, Jimmie H AL2024-07-20 active