Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9JWB callsign genealogy
Currently held by Beltz Jr, John 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 W9JWB's current licensee, walking backwards.
- Barth, Jacob WFLgranted 2024-10-02cancelled 2024-10-22
Successor callsigns
Callsigns held now by people who previously held W9JWB.
- BELTZ JR, JOHN WILgranted 2026-02-05
All historical holders
Every license row we've seen with the callsign W9JWB, oldest first.
- Beltz Jr, John W IL2000-11-17 → cancelled 2006-02-10
- Barth, Jacob W FL2024-10-22 active