Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4EX callsign genealogy
Currently held by STROBERG, JON E
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 W4EX's current licensee, walking backwards.
- MUZAMMIL, ALIGAgranted 2023-02-08cancelled 2024-05-03
Successor callsigns
Callsigns held now by people who previously held W4EX.
- STROBERG, JON EALgranted 2022-04-12
All historical holders
Every license row we've seen with the callsign W4EX, oldest first.
- WILSON JR, CARLOS G TN2008-02-26 → cancelled 2020-02-27
- STROBERG, JON E AL2020-03-17 → cancelled 2022-04-12
- MUZAMMIL, ALI GA2024-05-03 active