Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W5MSV callsign genealogy
Currently held by RINGLER, CHARLES B
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 W5MSV's current licensee, walking backwards.
- VAUGHAN, MICHAEL SMSgranted 2007-11-30cancelled 2015-05-09
Successor callsigns
Callsigns held now by people who previously held W5MSV.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W5MSV, oldest first.
- RINGLER, CHARLES B TX1998-01-09 → cancelled 2010-01-12
- VAUGHAN, MICHAEL S MS2025-04-22 active