Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W5SWX callsign genealogy
Currently held by SHOEMAKER, CHARLES E
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 W5SWX's current licensee, walking backwards.
- Valdez, Mauricio ETXgranted 2018-12-20cancelled 2020-01-28
Successor callsigns
Callsigns held now by people who previously held W5SWX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W5SWX, oldest first.
- SHOEMAKER, CHARLES E AR2004-04-28 → cancelled 2016-07-15
- Valdez, Mauricio E TX2020-01-28 active