Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9LO callsign genealogy
Currently held by TRUSCOTT, ROBERT G
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 W9LO's current licensee, walking backwards.
- Simmons, John EILgranted 2025-05-13cancelled 2026-03-31
Successor callsigns
Callsigns held now by people who previously held W9LO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9LO, oldest first.
- TRUSCOTT, ROBERT G WI2013-12-09 → cancelled 2026-03-06
- Simmons, John E IL2026-03-31 active