Confidence: Medium · Source: FCC ULS
KB9WSD callsign genealogy
Currently held by Piva, William J
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 KB9WSD's current licensee, walking backwards.
- Piva, William JILgranted 2024-08-16
Successor callsigns
Callsigns held now by people who previously held KB9WSD.
All historical holders
Every license row we've seen with the callsign KB9WSD, oldest first.
- Piva, William J IL2000-07-18 → cancelled 2001-11-14
- Piva, William J IL2024-07-23 → cancelled 2024-08-16