Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4SMV callsign genealogy
Currently held by PRATER JR, JUDSON 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 W4SMV's current licensee, walking backwards.
- Baltrusch, Jakob DSCgranted 2026-06-23cancelled 2026-07-11
Successor callsigns
Callsigns held now by people who previously held W4SMV.
- PRATER JR, JUDSON EKSgranted 2021-06-22
All historical holders
Every license row we've seen with the callsign W4SMV, oldest first.
- PRATER JR, JUDSON E TN2000-02-29 → cancelled 2001-07-17
- Baltrusch, Jakob D SC2026-07-11 active