Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WU3Z callsign genealogy
Currently held by UTZ, JACK R
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 WU3Z's current licensee, walking backwards.
- Szypulski, Raymond JPAgranted 2021-08-20cancelled 2022-09-07
Successor callsigns
Callsigns held now by people who previously held WU3Z.
- SILVER, GLENN LFLgranted 2020-08-14cancelled 2022-07-02
All historical holders
Every license row we've seen with the callsign WU3Z, oldest first.
- UTZ, JACK R IL2004-12-11 → cancelled 2016-12-13
- SILVER, GLENN L FL2017-01-07 → cancelled 2020-08-14
- Szypulski, Raymond J PA2022-09-07 active