Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9SV callsign genealogy
Currently held by RANDOLPH, ROSS W
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 W9SV's current licensee, walking backwards.
- LAABS, LAVALLE DWIgranted 2016-02-24cancelled 2020-05-12
Successor callsigns
Callsigns held now by people who previously held W9SV.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9SV, oldest first.
- RANDOLPH, ROSS W IL2008-02-29 → cancelled 2020-04-21
- LAABS, LAVALLE D WI2020-05-12 active